CN210536261U

CN210536261U - Sliding type insulating isolating rod for contact network lead

Info

Publication number: CN210536261U
Application number: CN201920824606.5U
Authority: CN
Inventors: 刘明晓; 朱申; 尚晶
Original assignee: Xi'an Railway Vocational And Technical Institute
Current assignee: Xi'an Railway Vocational And Technical Institute
Priority date: 2019-06-03
Filing date: 2019-06-03
Publication date: 2020-05-15
Anticipated expiration: 2029-06-03

Abstract

The utility model relates to an insulating barrier rod of contact net wire slidingtype, including cable positioning seat, insulating spacer bar, wherein the cable positioning seat totally two, mutual parallel distribution between two cable positioning seats, and through an at least insulating spacer bar interconnect between two cable positioning seats, insulating spacer bar both ends are articulated with cable positioning seat surface respectively, and cable positioning seat axis is 30-90 contained angles with insulating spacer bar axis, and the interval is not less than 1 meter between two cable positioning seats. On one hand, the novel adjustable hydraulic cylinder has a simple structure, small dead weight and good adjustment flexibility and universality; on the other hand satisfies when keeping apart the location to the cable, effectively prevents because of cable thermal contraction, along with the wind under the circumstances such as swing the cable with this novel friction loss between with reduce cable at deformation, swing in-process cable fatigue degree to very big improvement is to the stability and the reliability of cable location isolation operation.

Description

Sliding type insulating isolating rod for contact network lead

Technical Field

The utility model relates to an insulating spacer bar structure of contact net wire slidingtype belongs to railway power transmission and transformation technical field.

Background

In the prior electric railway system, in order to realize effective isolation and positioning of each power cable, communication cable and the like in a power supply contact network and prevent the occurrence of serious influence on the operation safety and reliability of an electric locomotive caused by insufficient insulation distance between adjacent cables, even collision and the like due to factors such as thermal expansion and cold contraction of the cables, gravity action, wind blowing and the like, the prior art mainly carries out isolation and positioning between two adjacent cables in the contact network by auxiliary tools such as a spacer, a spacer and the like, but in use, the spacer is usually in a traditional structure, such as a four-split sub-conductor spacer for a phase spacer with the patent application number of 201620974191.6 and an eight-split sub-conductor spacer for a phase spacer with the application number of 201320450869.7, which can meet the requirement of isolation and positioning of the cables to a certain degree, the condition that the insulation distance is reduced is prevented, but on one hand, the conventional spacer is rigidly connected with the cable, so that when the cable swings and deforms due to thermal expansion and cold contraction and wind or external force impact, the friction loss of the cable between the conventional spacer is serious, the internal stress concentration of the cable is easily caused, and the operation stability and feasibility of the cable equipment are seriously influenced, on the other hand, the conventional spacer is lack of effective resisting capability in the operation of external force impact, particularly wind blowing operation, so that the conventional contact net cable is extremely easy to swing greatly under the wind blowing, the abrasion of the cable and parts connected with the cable is additionally increased while the stability of the cable connection structure is seriously influenced, and aiming at the problem, an additional wire sliding type insulation spacer device such as a contact net with the application number of '201720594002.7' is developed at present, the novel spacer equipment that can carry out sliding connection location with the cable, this type of novel spacer can effectively reduce the spacer in the friction loss between the cable surface, nevertheless still can't carry out effectual resistance to external force impact, especially formula wind-force blowing effort, consequently leads to the cable still great under wind-force drive swing, can't effectively satisfy the needs that use.

In addition, when the current various spacers are used, although the adjacent cables can be effectively connected and positioned to prevent the defect of insufficient cable insulation space, the phenomenon of electric leakage, creepage and even short circuit between the adjacent cables caused by solid and liquid sediments due to precipitation, snowfall and dust in the air are easy to deposit on the spacers is caused.

Therefore, in order to meet the current situation, a brand new spacer rod needs to be developed urgently to meet the actual use requirement.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects existing in the prior art, the utility model provides a sliding type insulating isolation rod for a contact network wire, which has the advantages of simple structure, small dead weight, good adjustment flexibility and universality, and can effectively reduce the influence of wind power on the positioning stability, and effectively reduce the serious influence of the cable swinging amplitude, play, bending deformation and the like along with wind on the positioning stability and the strength of the cable structure, thereby greatly improving the stability and reliability of the positioning isolation structure for cable equipment; on the other hand satisfies when keeping apart the location to the cable, effectively prevents because of cable fever shrinkage, along with the wind under the circumstances such as swing the cable with this novel friction loss between with reduce cable at deformation, swing in-process cable fatigue degree to very big improvement is to the stability and the reliability of cable location isolation operation, and effectively reduces cable equipment fault rate and location maintenance operation intensity of labour and cost.

In order to achieve the above purpose, the present invention is realized by the following technical solution:

the utility model provides an insulating barrier rod of contact net wire slidingtype, includes cable positioning seat, insulating spacer bar, wherein the cable positioning seat totally two, mutual parallel distribution between two cable positioning seats, and through at least one insulating spacer bar interconnect between two cable positioning seats, insulating spacer bar both ends are articulated with cable positioning seat surface respectively, and cable positioning seat axis is 30-90 contained angles with insulating spacer bar axis, and the interval is not less than 1 meter between two cable positioning seats.

Further, the cable positioning seat comprises an upper seat, a lower seat, a bearing spring, two connecting hanging plates, a connecting shaft, universal balls, sliding grooves and a limiting spring, wherein the bearing grooves with semicircular and coaxially distributed cross sections are formed in the lower end face of the upper seat and the upper end face of the lower seat, arrows on the lower end face of the upper seat and the upper end face of the lower seat are connected with each other through the bearing springs, the distance between the lower end face of the upper seat and the upper end face of the lower seat is 0-10 mm, the bearing springs are symmetrically distributed along the axis of the bearing grooves and are uniformly distributed along the axis of the bearing grooves, at least two sliding grooves are formed in the outer surfaces of the upper seat and the lower seat, the sliding grooves are distributed in parallel with the axis of the upper seat and the axis of the lower seat and are uniformly distributed around the axis of the bearing grooves, the connecting hanging plates are of a frame structure with rectangular cross sections and are coaxially distributed with the bearing grooves, the connecting hanging plates are two connecting hanging plates, the link plate is connected with first seat, second seat surface sliding connection through spout and first seat, second seat outside and outside the second seat, connect the link plate through at least two spacing springs and first seat, second seat surface connection, and each spacing spring encircles bearing groove axis equipartition, the connecting axle is at least two, encircle bearing groove axis equipartition and with bearing groove axis parallel distribution, and the connecting axle both ends respectively with be connected link plate side surface vertical distribution, universal ball is a plurality of, and the equipartition is in first seat, second seat's bearing groove, and each universal ball encircles bearing groove axis equipartition and through bearing spring and bearing groove interconnect, just universal ball axis and bearing groove axis are perpendicular and crossing.

Furthermore, a plurality of through holes are uniformly distributed on the upper half seat and the lower half seat, the aperture of each through hole is not smaller than 1 mm, each through hole is connected with the bearing groove, and the total area of the through holes is 40% -80% of the total area of the outer surfaces of the upper half seat and the lower half seat.

Furthermore, in the connecting shaft, one of the connecting shafts is connected with the insulating spacing rod, the connecting shafts are connected with the insulating spacing rod through shaft sleeves, the shaft sleeves are coaxially distributed with the connecting shafts and are connected with each other through bearings, the outer surfaces of the shaft sleeves are hinged with the insulating spacing rod through hinges, and the axes of the insulating spacing rod are intersected with the middle point of the connecting shafts.

Furthermore, the main insulation spacing rod comprises two insulation rods, two elastic insulation plates, an adjusting spring, two elastic sealing end covers, two connecting sleeves, a universal hinge and a return spring, wherein the front ends of the two insulation rods are respectively connected with the two cable positioning seats, the rear end faces of the two insulation rods are respectively connected with one connecting sleeve and are coaxially distributed, each connecting sleeve is of a groove-shaped structure which is coaxially distributed with the corresponding insulation rod, covers the corresponding insulation rod and is coaxially distributed with the corresponding insulation rod, the front end face of each connecting sleeve is connected with the corresponding insulation rod through the corresponding elastic sealing end cover and covers the corresponding insulation rod, the side surfaces of the connecting sleeves are mutually connected between the outer surfaces of the corresponding insulation rods in a sliding mode through sliding rails, the sliding rails are uniformly distributed around the axis of the corresponding connecting sleeves and are distributed in parallel with the axis of the corresponding insulation rods, the bottoms of the corresponding connecting sleeves are mutually connected, the utility model discloses an insulator spindle, including insulator spindle, universal hinge and reset spring, the insulator spindle is connected with the adapter sleeve, and the insulator spindle is connected with the insulator spindle, and the insulator spindle is connected with the adapter sleeve, and the insulator spindle is connected with the insulator spindle, and the.

Furthermore, the elastic insulating plate is in any one of a net plate structure and a grid plate structure.

Furthermore, the bottom and the side wall of the connecting sleeve are both provided with at least one sewage draining outlet.

Furthermore, the insulating rods and the connecting sleeves of the upper half seat, the lower half seat and the insulating spacer rod respectively comprise a hard insulating matrix and an elastic insulating matrix, wherein the elastic insulating matrix is coated outside the hard insulating matrix.

The novel cable positioning isolation structure has the advantages that on one hand, the structure is simple, the dead weight is small, the adjustment flexibility and the universality are good, meanwhile, the influence of the novel positioning stability of wind power can be effectively reduced, the condition that the cable swinging amplitude, the movement, the bending deformation and the like along with wind seriously influence the cable positioning stability and the cable structure strength is effectively reduced, and therefore the stability and the reliability of the positioning isolation structure of the cable equipment are greatly improved; on the other hand satisfies when keeping apart the location to the cable, effectively prevents because of cable fever shrinkage, along with the wind under the circumstances such as swing the cable with this novel friction loss between with reduce cable at deformation, swing in-process cable fatigue degree to very big improvement is to the stability and the reliability of cable location isolation operation, and effectively reduces cable equipment fault rate and location maintenance operation intensity of labour and cost.

Drawings

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

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partial structure of the cross section of the upper half seat and the lower half seat;

fig. 3 is a schematic sectional partial structure diagram of the connecting sleeve.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Fig. 1-3 a contact net wire slidingtype insulating barrier rod, including cable positioning seat 1, insulating spacer bar 2, wherein cable positioning seat 2 totally two, 2 mutual parallel distribution between two cable positioning seats, and through 2 interconnect of at least one insulating spacer bar between two

cable positioning seats

1, 2 both ends of insulating spacer bar are articulated with 1 surface of cable positioning seat respectively, and 1 axes of cable positioning seat and 2 axes of insulating spacer bar are 30-90 contained angles, and the interval is not less than 1 meter between two cable positioning seats 1.

The middle point is needed to explain, the cable positioning seat comprises an upper half seat 11, a lower half seat 12, a pressure bearing spring 13, a connecting hanging plate 14, a connecting shaft 15, a universal ball 16, a sliding groove 17 and a limiting spring 18, wherein the lower end face of the upper half seat 11 and the upper end face of the lower half seat 12 are respectively provided with a bearing groove 19 with semicircular and coaxially distributed cross sections, arrows on the lower end face of the upper half seat 11 and the upper end face of the lower half seat 12 are connected with each other through a plurality of pressure bearing springs 13, the distance between the lower end face of the upper half seat 11 and the upper end face of the lower half seat 12 is 0-10 mm, the pressure bearing springs 13 are symmetrically distributed along the axis of the bearing groove 19 and are uniformly distributed along the axis of the bearing groove 19, the outer surfaces of the upper half seat 11 and the lower half seat 12 are respectively provided with at least two sliding grooves 17, each sliding groove 17 is distributed in parallel with the axis of the upper half seat 11 and the lower half seat 12 and is uniformly distributed around the axis, connect link plate 14 totally two, two connect link plate 14 cladding outside first seat 11, second seat 12 and through spout 17 and first seat 11, second seat 12 surface sliding connection, connect link plate 14 through at least two spacing spring 18 and first seat 11, second seat 12 surface connection, and each spacing spring 18 encircles bearing groove 19 axis equipartition, connecting axle 15 is at least two, encircles bearing groove 19 axis equipartition and with bearing groove 19 axis parallel distribution, and connecting axle 15 both ends respectively with be connected link plate 14 side surface vertical distribution, universal ball 16 is a plurality of, and the equipartition is in first seat 11, second seat 12 bearing groove 19, and each universal ball 16 encircles bearing groove 19 axis equipartition and through pressure-bearing spring 13 and bearing groove 19 interconnect, just universal ball 16 axis is perpendicular and crossing with bearing groove 19 axis.

Meanwhile, a plurality of through holes 3 are uniformly distributed on the upper half seat 11 and the lower half seat 12, the aperture of each through hole 3 is not smaller than 1 mm, each through hole 3 is mutually connected with the bearing groove 19, and the total area of the through holes 3 is 40% -80% of the total area of the outer surfaces of the upper half seat 11 and the lower half seat 12.

In addition, in the connecting shaft 15, one of the connecting shafts is connected with the insulating spacing rods 2, the connecting shaft 15 is connected with the insulating spacing rods 2 through shaft sleeves 4, the shaft sleeves 4 are coaxially distributed with the connecting shaft 15 and are connected with each other through bearings, the outer surfaces of the shaft sleeves 4 are hinged with the insulating spacing rods 2 through hinges, and the axes of the insulating spacing rods 2 are intersected with the middle points of the connecting shafts 15.

It should be noted that the main insulating spacer bar 2 includes two insulating bars 21, two elastic insulating plates 22, two adjusting springs 23, two elastic sealing end covers 24, two connecting sleeves 25, two universal hinges 26 and two restoring springs 27, the front ends of the two insulating bars 21 are respectively connected with the two cable positioning seats 1, the rear end faces are both connected with and coaxially distributed with one connecting sleeve 25, the connecting sleeve 25 is a groove-shaped structure coaxially distributed with the insulating bar 21 and covers the insulating bar 21, the front end face of the connecting sleeve 25 is connected with the insulating bar 21 through the elastic sealing end cover 24 and covers the insulating bar 21, the side surfaces of the connecting sleeve 25 are slidably connected with each other through sliding rails 28 between the outer surfaces of the insulating bars 21, the sliding rails 28 are uniformly distributed around the axis of the connecting sleeve 25 and are distributed in parallel with the axis of the insulating bar 21, the bottoms of the connecting sleeves 25 are connected with each other through the adjusting springs 23 between the end faces of the insulating bar 21, adjusting spring 23 distributes with insulator spindle 21 and adapter sleeve 25 coaxial respectively, through universal hinge 26 and reset spring 27 interconnect between the adapter sleeve 25 that insulator spindle 21 connects, wherein universal hinge 26 distributes with the adapter sleeve 25 coaxial, reset spring 27 is two at least, encircles 26 equipartitions of universal hinge and both ends and is connected perpendicularly with two adapter sleeve 25 bottoms respectively, elasticity insulation board 22 is a plurality of, encircles the insulator spindle 21 axis respectively and is the heliciform equipartition at insulator spindle 21 surface, just elasticity insulation board 22 up end is 45-90 contained angles with insulator spindle 21 axis, and the pitch that elasticity insulation board 22 of two insulator spindles 21 surfaces distributes is the same, and the spiral direction is opposite.

The elastic insulating plate 22 is any one of a net plate structure and a grid plate structure, and the bottom and the side wall of the connecting sleeve 25 are provided with at least one sewage draining outlet 29.

Preferably, the upper half base 11, the lower half base 12, the insulating rod 21 of the insulating spacer rod 2, and the connecting sleeve 25 all include a hard insulating base 101 and an elastic insulating base 102, wherein the elastic insulating base 101 is coated outside the hard insulating base 101.

Further preferably, the axis of the return spring 18 is parallel to the axis of the sliding chute 17.

This is novel in concrete implementation, at first as required, assembles reserve to constituting this neotype cable positioning seat, insulating spacer bar.

When going on cable positioning, at first make two cable positioning seats among this neotype constitute a workgroup to the cladding is at two adjacent cable surfaces respectively, then passes through an insulating space bar with the cable positioning seat in same workgroup and connects, can accomplish this novel assembly, and fix a position the cable that is located insulating space bar both ends through the insulating space bar among the unified workgroup, prevent that the power supply accident that insulating interval is crossed little two and is caused between adjacent cable from taking place.

In the operation of completing connection and positioning the power cable, when the cable is deformed, jumped, shifted and distorted due to external force drive such as expansion with heat and contraction with cold, wind power and the like, the external force can be eliminated by the elastic deformation of the cable positioning seat and the insulating spacer rod, so that the stability of cable positioning is improved, and the friction loss and the material fatigue degree between the cable and the positioning part are reduced.

Under the driving of external force, the distance between the upper half seat and the lower half seat of the cable positioning seat is adjusted through the pressure-bearing spring to perform elastic adjustment within a certain range, so that the friction loss and fatigue between the radial external force driven lower cable and the upper half seat and the lower half seat are effectively reduced while the cable is positioned; simultaneously through first seat, second seat and cable surface sliding connection between each universal ball in the first seat bearing groove, second seat bearing groove, friction loss and the fatigue between cable and first seat, second seat when reducing cable axial float, each ten thousand lucky ball carries out elastic deformation along the radial direction of cable in addition accessible pressure-bearing spring to further low radial external force drive friction loss and the fatigue between cable and first seat, second seat down.

Under the drive of external force, the insulation spacing rod is rotatably adjusted in a certain range under the drive of the external force through the hinged connection between the insulation spacing rod and each cable positioning seat, the universal hinge of the insulation spacing rod and the reset spring, so that the torque applied to the cable by the external force and the swing amplitude of the cable are reduced through the rotation of the insulation spacing rod, and the aims of reducing the structural strength and fatigue of the cable due to large torque and reducing the friction loss between the cable and the cable positioning seat are fulfilled; when the cable takes place deformation because of external force etc. again, the insulator spindle of accessible insulation spacer bar and connecting cover carry out elasticity concertina shape displacement under the adjusting spring drive to the realization is when guaranteeing that the insulation interval is stable between the adjacent cable, and accessible elastic deformation realizes carrying out nimble adjustment to the interval between the cable in addition, avoids taking place because of the too big pressure and the too big condition of frictional loss between cable and the cable positioning seat of leading to of external force.

In addition, this is novel in operation, two insulating rod surface opposite spiral direction's of accessible insulating spacer rod elasticity insulation board effectively leads to the drive direction and the drive power of wind-force on the one hand, thereby reach and reduce wind-force to this novel whole effort of cable machine, reduce the purpose of cable swing range and deformation volume, a plurality of elasticity insulation boards of on the other hand accessible and universal hinge, effectively realize forming discontinuous distribution's surface on insulating spacer rod surface, thereby effectively prevent because of the rainfall, the dust is very easily through the deposit in snowfall and the air this novel on the surface and lead to between adjacent cable because of the solid, liquid deposit takes place the electric leakage, creepage even causes the short circuit condition to take place.

Those skilled in the art should understand that the present invention is not limited by the above embodiments. The foregoing embodiments and description have been made only for the purpose of illustrating the principles of the invention. The present invention can be further modified and improved without departing from the spirit and scope of the present invention. Such changes and modifications are intended to be within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an insulating barrier rod of contact net wire slidingtype which characterized in that: the sliding type insulating isolating rod for the contact network lead comprises two cable positioning seats and insulating spacer rods, wherein the two cable positioning seats are distributed in parallel, the two cable positioning seats are connected with each other through at least one insulating spacer rod, two ends of each insulating spacer rod are hinged to the outer surface of each cable positioning seat respectively, the axis of each cable positioning seat and the axis of each insulating spacer rod form an included angle of 30-90 degrees, and the distance between the two cable positioning seats is not less than 1 meter.

2. The sliding type insulating isolating rod for the contact line conductor of claim 1, which is characterized in that: the cable positioning seat comprises an upper seat, a lower seat, bearing springs, a connecting hanging plate, a connecting shaft, universal balls, sliding grooves and a limiting spring, wherein the bearing grooves with semicircular and coaxial cross sections are formed in the lower end face and the upper end face of the lower seat of the upper seat, the arrowheads on the lower end face and the upper end face of the lower seat of the upper seat are connected with each other through a plurality of bearing springs, the distance between the lower end face and the upper end face of the lower seat of the upper seat is 0-10 mm, the bearing springs are symmetrically distributed along the axis of the bearing grooves and are uniformly distributed along the axis of the bearing grooves, at least two sliding grooves are formed in the outer surfaces of the upper seat and the lower seat, the sliding grooves are distributed in parallel with the axis of the upper seat and the lower seat and are uniformly distributed around the axis of the bearing grooves, the connecting hanging plate is a frame structure with a rectangular cross section and coaxial distribution with the bearing grooves, the connecting hanging plate is two, and the two, The link plate is connected with first seat, second seat surface sliding connection through spout and first seat, second seat outside and outside the second seat, connect the link plate through at least two spacing springs and first seat, second seat surface connection, and each spacing spring encircles bearing groove axis equipartition, the connecting axle is at least two, encircle bearing groove axis equipartition and with bearing groove axis parallel distribution, and the connecting axle both ends respectively with be connected link plate side surface vertical distribution, universal ball is a plurality of, and the equipartition is in first seat, second seat's bearing groove, and each universal ball encircles bearing groove axis equipartition and through bearing spring and bearing groove interconnect, just universal ball axis and bearing groove axis are perpendicular and crossing.

3. The sliding type insulating isolating rod for the contact line conductor of claim 2 is characterized in that: the upper half seat and the lower half seat are uniformly distributed with a plurality of through holes, the aperture of each through hole is not less than 1 mm, each through hole is connected with the bearing groove, and the total area of the through holes is 40% -80% of the total area of the outer surfaces of the upper half seat and the lower half seat.

4. The sliding type insulating isolating rod for the contact line conductor of claim 2 is characterized in that: the connecting shaft, one of them connecting shaft and insulating spacer bar interconnect, through axle sleeve interconnect between connecting shaft and the insulating spacer bar, axle sleeve and connecting shaft coaxial distribution and through bearing interconnect, the axle sleeve surface is articulated through hinge and insulating spacer bar, and insulating spacer bar axis intersects with the connecting shaft midpoint.

5. The sliding type insulating isolating rod for the contact line conductor of claim 1, which is characterized in that: the insulating spacer rod comprises two insulating rods, two elastic insulating plates, an adjusting spring, two elastic sealing end covers, two connecting sleeves, a universal hinge and a return spring, wherein the front ends of the two insulating rods are respectively connected with the two cable positioning seats, the rear end faces of the two insulating rods are respectively connected with one connecting sleeve and coaxially distributed, the connecting sleeves are groove-shaped structures which are coaxially distributed with the insulating rods and are coated outside the insulating rods and coaxially distributed with the insulating rods, the front end faces of the connecting sleeves are connected with the insulating rods through the elastic sealing end covers and are coated outside the insulating rods, the side surfaces of the connecting sleeves are mutually connected between the outer surfaces of the insulating rods in a sliding way through sliding rails, the sliding rails are uniformly distributed around the axes of the connecting sleeves and are parallel to the axes of the insulating rods, the bottoms of the connecting sleeves are mutually connected between the end faces of the insulating rods through the, the utility model discloses an insulator spindle, including insulator spindle, universal hinge and reset spring, the insulator spindle is connected with the adapter sleeve, and the insulator spindle is connected with the insulator spindle, and the insulator spindle is connected with the adapter sleeve, and the insulator spindle is connected with the insulator spindle, and the.

6. The sliding type insulating isolating rod for the contact line conductor of claim 5 is characterized in that: the elastic insulating plate is in any one of a net plate structure and a grid plate structure.

7. The contact net lead sliding type insulating isolating rod as claimed in claim 5, characterized in that: the bottom and the side wall of the connecting sleeve are both provided with at least one sewage draining outlet.

8. The sliding type insulating isolating rod for the contact line conductor of claim 2 is characterized in that: the upper half seat and the lower half seat are both wrapped by a hard insulating matrix and an elastic insulating matrix, wherein the elastic insulating matrix is wrapped outside the hard insulating matrix.

9. The sliding type insulating isolating rod for the contact line conductor of claim 5 is characterized in that: the insulating rod and the connecting sleeve are wrapped by the hard insulating base body and the elastic insulating base body, and the elastic insulating base body is wrapped outside the hard insulating base body.