RU2588355C1 - Suspension bracket for communication wire - Google Patents

Abstract

FIELD: engineering.

SUBSTANCE: present invention relates to suspended devices of communication wires for electric vehicles. Bracket includes a traverse that is made from a dielectric material, has a box-like rectangular profile and is reinforced with end inserts at the ends; on its free end the traverse has a system of wire channels that successively change into each other and are formed by through slots; the traverse includes induction, guide and retaining channels. Induction channel is formed by an oblique cut made through the thickness of the traverse at the angle of 20°-45° to its longitudinal axis at depth of 0.4-0.6 of its width. Guide channel is formed by a longitudinal cut, milled along the inner edge of the said oblique cut. Retaining channel is formed by a circular cut made perpendicular to the longitudinal axis of the traverse, and is intended to accommodate wire supporting rotary sleeve. Sleeve has a through longitudinal slot that joins its axial hole and a through hole for a locking bolt. Sleeve is arranged in the holder channel with possibility of rotation.

EFFECT: simplified design, much easy mounting or dismantling and higher reliability of the bracket.

14 cl, 7 dwg

Description

Technical field

The invention relates to support and suspension devices, in particular to brackets for suspension of communication wires of electric transport vehicles made of composite materials, and can be used on railways, for example, for suspension of a waveguide wire of train radio communication, as well as on tram and trolleybus roads for pendants for telephone, telegraph wires, radio wires and other low current wires.

State of the art

Known metal bracket for suspension of a waveguide wire having a vertical rectilinear base welded to the support of the contact network with a traverse, on the pin of which an insulator is screwed with a waveguide wire fixed to it by winding (RU No. 2107635 C1, B60M 1 / 12.1 / 20, publ. 27.03 .98. Bull. No. 9).

A well-known bracket of the same purpose, containing a wooden beam with a rectangular cross-section, one end fixed to the support of the contact network with a half-clamp with nuts and washers, and at the other end having an insulator mounted on a pin with a waveguide wire, fixed by winding the insulator (Markov A. C. Installation of the contact network of railways. Handbook. M .: Transport, 1985, p. 136, Fig. 7.16c).

A disadvantage of the known brackets is the need to use insulators with fixing the waveguide wire through the winding, which leads to deformation of the wire from tensile and torsional stresses during the winding, and to wire breakage from critical tension or to its excessive sagging when changing the position of the support, crosshead or insulator due to external influences. Deformation of the wire from the indicated voltages negatively affects the quality of radio communication, and a wire break disrupts radio communication.

A disadvantage of the known brackets is also the location of insulators, glass and porcelain, traverses without protective barriers on the outside, as a result of which they turn out to be objects of accidental or intentional destructive actions.

Another disadvantage of the known brackets is the fragility of their traverse. The metal traverse according to patent RU No. 2107635 is subject to corrosion, especially fast-flowing in places of welded joints, and the wooden traverse according to the Markov A.S. Directory It has neither mechanical nor physical strength.

Thus, the state of the known brackets requires constant monitoring, which is associated with the attraction of additional labor, additional time and money.

Bracket for Markov A.S. Reference is the closest in technical essence to the claimed one and is selected as the closest analogue (prototype).

Disclosure of invention

The technical problem, which was posed during the creation of the invention, was to develop a chemically and climate-resistant insulator-free compact design of the suspension bracket of the vehicle’s electric drive vehicle communication wire suspension bracket, which does not deform the wire, made of durable dielectric materials, resistant to transport and operational loads, overcoming the disadvantages of the analogue and prototype .

The technical result that can be obtained by using the invention is to simplify the design, to increase the ease of installation (dismantling) and to increase the operational reliability of the bracket.

To solve the problem and achieve the stated result in the suspension bracket of the communication wire of the vehicle’s electric drive means, containing a traverse made of a dielectric material with a rectangular cross section, fixed at one end to a support in the “on edge” position, a wire-supporting element mounted on the other, free end of the traverse , and the fastening means, according to the invention, the traverse is made of a box-shaped hollow profile, reinforced by glued end inserts at both ends, n and the free end is equipped with a system of conduit channels, including the input, guide and holding channels, sequentially passing into each other, formed by through the slots, the input channel is formed by an oblique slot made along the thickness of the beam at an angle of 20 ° -45 ° to its longitudinal axis to a depth of component of 0.4-0.6 of its width, and is intended to provide an undirected free passage of the wire, the guide channel is formed by a longitudinal slot parallel to the longitudinal axis of the beam, milled along the inner edge said oblique slot, and is intended to provide directional movement of said wire, the retaining channel is formed by a circular slot made perpendicular to the longitudinal axis of the crosshead, and is designed to coaxially accommodate a wire-supporting element in it, the latter is made in the form of a rotary sleeve with an outer diameter corresponding to the diameter of the holding channel provided open through longitudinal groove associated with its axial hole, and through, threaded or uncut hole for locking bolt t, the sleeve is placed in the holding channel with the possibility of rotation until its longitudinal groove is aligned with the guide channel for the free passage of the waveguide wire into its axial hole and with the possibility of rotation with overlapping of the specified groove after the wire passes until its hole for the locking bolt is aligned with the through or blind hole made in the traverse under the same bolt to prevent the wire from coming out of the sleeve spontaneously and to secure the sleeve to prevent its circular and transverse movement relative to traverses, the sleeve is fixed with a locking bolt that is passed or screwed into the aligned holes, while the traverse and inserts are made of composite material based on fiber reinforcing material and a polymeric binder, the sleeve is made of a polymeric material or a metal alloy. In particular cases of using the invention, the end inserts are glued to the ends of the beam to a height of 0.8-0.95 of the width of the beam to ensure moisture drainage; the sleeve is made with flats under the tool for turning; under the locking bolt, the sleeve is made with a through uncut hole, and the beam with a through hole, while the locking bolt is passed through the combined holes of the sleeve and the beam and fixed on the outside of the beam with a washer and nut; under the locking bolt, the sleeve is made with a through threaded hole, and the yoke with a blind hole, while the locking bolt is screwed into the combined holes of the sleeve and the yoke; means for attaching the bracket to a support of rectangular cross section include at least one metal profile with stiffeners, mainly angular, studs, bolts, nuts and washers; means for attaching the bracket to the support of circular cross section include a U-shaped clamp with nuts and washers; unidirectional materials, for example roving, and / or orthotropic materials, for example tapes, canvases, mats, veils or fabrics, are used as reinforcing material in the composite material of the traverse and inserts; glass, basalt, carbon or polymer fiber, or a combination thereof, was used as a reinforcing fiber for rovings, tapes, canvases, mats, veils or fabrics; a binder based on thermosetting or thermoplastic resins, mainly epoxy, polyester, vinyl ester, phenolic, polyurethane, or a combination thereof, is used as a polymer binder composite material of the traverse and inserts; polystyrene, polyamide, polypropylene or fluoroplastic are used as the polymer for the manufacture of the sleeve; as a material for the manufacture of the sleeve used an alloy of non-ferrous metals with low hardness, mainly bronze or brass; the bracket is designed for suspension of the train guide waveguide wire; the bracket is designed for suspension of a telephone, telegraph or radio communication wire of weak current for tram or trolleybus electric vehicles.

Distinctive features of the prototype features of the claimed bracket are the following:

a) signs that provide a technical result in all cases:

- the traverse is made box-shaped hollow profile,

- reinforced with glued end inserts at both ends,

- at the free end is equipped with a system of wire passage channels, including input, guide and holding channels, sequentially passing into each other, formed by through slots,

- the input channel is formed by an oblique slot made along the thickness of the beam at an angle of 20 ° -45 ° to its longitudinal axis to a depth of 0.4-0.6 of its width, and is intended to provide an undirected free passage of the wire,

- the guide channel is formed by a longitudinal slot parallel to the longitudinal axis of the beam, milled along the inner edge of said oblique slot, and is intended to provide directional movement of said wire,

- the retaining channel is formed by a circular slot made perpendicular to the longitudinal axis of the beam, and is intended for coaxial placement of a wire-supporting element in it,

- wire-supporting element is made in the form of a rotary sleeve with an outer diameter corresponding to the diameter of the retaining channel, equipped with an open through longitudinal groove mated to its axial hole, and a through threaded or uncut hole for the locking bolt,

- the sleeve is placed in the holding channel with the possibility of rotation to align its longitudinal groove with the guide channel for the free passage of the waveguide wire into its axial hole and with the possibility of rotation with overlapping of the specified groove after the passage of the wire to combine its through threaded or uncut hole for the locking bolt with through or a blind hole made in the traverse for the same bolt, to prevent the wire from returning from the sleeve spontaneously and to fix the sleeve to avoid its circular and lateral movement relative to the beam,

- the sleeve is secured by a locking bolt that is passed or screwed into the aligned holes,

- the traverse and the insert are made of a composite material based on a fibrous reinforcing material and a polymer binder,

- the sleeve is made of a polymeric material or a metal alloy;

b) the signs that provide a technical result in special cases:

- end inserts glued to the ends of the beam to a height of 0.8-0.95 of the width of the beam, to ensure drainage of moisture,

- the sleeve is made with flats under the tool for rotation,

- under the locking bolt, the sleeve is made with a through uncut hole, and the beam with a through hole, while the locking bolt is passed through the indicated combined holes of the sleeve and the beam and fixed on the outside of the beam with a washer and nut,

- under the locking bolt, the sleeve is made with a through threaded hole, and the yoke with a blind hole, while the locking bolt is screwed into the indicated combined holes of the sleeve and the yoke,

- the means of fastening the bracket to the support of rectangular cross section include at least one metal profile with stiffeners, mainly corner, studs, bolts, nuts and washers,

- the means of fastening the bracket to the support of circular cross section include a U-shaped clamp with nuts and washers,

- as reinforcing material in the composite material of the traverse and inserts used unidirectional materials, such as roving, and / or orthotropic materials, such as ribbons, canvases, mats, veils or fabrics,

- glass, basalt, carbon or polymer fiber, or a combination thereof, was used as a reinforcing fiber for rovings, tapes, canvases, mats, veils or fabrics

- a binder based on thermoplastic or thermosetting resins, mainly epoxy, polyester, vinyl ester, phenolic, polyurethane, or a combination thereof, is used as a polymer binder composite material of the traverse and inserts;

- as the polymer for the manufacture of the sleeve used polystyrene, polyamide, polypropylene or fluoroplastic,

- as a material for the manufacture of the sleeve used an alloy of non-ferrous metals with low hardness, mainly bronze or brass,

- the bracket is designed for suspension of the waveguide wire of train radio communication,

- the bracket is designed for suspension of telephone, telegraph or radiofication wires of low current communication of tram or trolleybus electric vehicles.

The claimed bracket has several advantages over the prototype bracket:

- a different design, characterized by accuracy of the functional purpose, to ensure the suspension of the wire without its deformation, not achievable in the prototype with its deforming fixation of the wire on the insulator;

- a different design of the traverse, allowing it to combine wire-passing and wire-supporting functions that are not possible for the traverse according to the prototype;

- a different design of the wire-supporting element capable of holding it in a given direction without deformation of the wire;

- simplicity and compactness of the design, due to the lack of external protruding most vulnerable parts, such as an insulator on a pin in the prototype;

- ease of installation (dismantling), provided by simple transmission of the wire through a system of channels formed in the traverse, with the fixing not of the wire, as in the prototype, but of the wire-supporting element;

- durability of the design due to the choice of high-strength materials resistant to climatic stress and chemical attack.

In the claimed design of the bracket, the beam does not serve as a support for the insulator, as proposed in the prototype, but as a conductor for the suspended wire, eliminating the need for an insulator. The channel system created in the traverse provides suspension of the undeformed wire in a given direction. A special sleeve located in the traverse supports the suspended wire and prevents it from exiting from the channel system, which confirms the simplicity and compactness of the design, as well as the convenience of installation (dismantling).

The longevity of the bracket is due to the manufacture of its traverse and its end inserts made of composite material based on individually taken or taken in combinations of thermoplastic or thermosetting resin, organic or inorganic fiber in the form of a unidirectional or multidirectional material (for example, woven), and the sleeve - from a polymeric material or from a corrosion-resistant alloy of non-ferrous metals with low hardness, mainly from bronze or brass. Traverse is made by pultrusion or molding, the sleeve - by injection molding.

The design of the bracket is cost-effective, since it practically does not require repair during the entire service life.

The claimed bracket is designed for suspension of communication wires of electric vehicles. However, it is suitable for hanging long non-electric cords, ropes, wires, light cables and the like.

An experimental check of the brackets for forced deflection of the traverse and loss of wire confirmed the reliability of the proposed design. Thus, the claimed bracket in comparison with the prototype is more effective from the point of view of its design features, it is cheaper from the point of view of production, requires minimal time for installation and dismantling, reliable in operation.

The invention is illustrated by a description of a specific, but non-limiting example of its implementation in the suspension bracket of the waveguide wire train radio communications and the accompanying drawings.

In FIG. 1 shows a bracket of the claimed design, mounted on a rectangular support, front view; in FIG. 2 - the same, top view; in FIG. 3 shows a view A of FIG. 1, in FIG. 4 shows a cross-arm bracket, front view; in FIG. 5 - same, top view; in FIG. 6 shows a system of wire passage channels at the free end of the beam (in a perspective view); in FIG. 7 shows a wire-holding sleeve, front, side, and section AA views.

The bracket 1 for the suspension of the waveguide wire 2 contains a traverse 3, one end 4 mounted on a rectangular support 5 in the "on the edge" position, a wire-supporting element - a sleeve 6, mounted on the other, free end 7 of the traverse 3 and means for attaching the traverse 3 to the support 5: metal clamping corner profile 8, studs 9, washers 10, nuts 11 (Figs. 1, 2, 3). Depending on the cantilever length of the bracket 1, the means of attachment to the support 5 include one clamping corner profile with a length of less than 800 mm and at least two profiles, one clamping profile and the other supporting if the length exceeds 800 mm. In the case of fastening the bracket 1 to the round support, the fastening means include a U-shaped clamp with nuts and washers.

The traverse 3 is made of a box-shaped hollow profile with ends 4 and 7 reinforced with end inserts 12 for the length of the holes and slots, glued to a height of 0.9 of the width of the traverse for moisture drainage, equipped with a system of consecutively formed through the slots of the wire passage channels located at its end 7, including a lead-in 13, a guide 14 and holding 15 channels (Fig. 4, 5, 6).

The inlet channel 13 is formed by an oblique through slot 16 made along the thickness of the beam 3 at an angle of 20 ° -45 ° to its longitudinal axis to a depth of 0.4-0.6 of its width, and is intended to provide an undirected free passage of the wire 2.

The guide channel 14 is formed by a longitudinal through slot 17 milled along the inner edge of said oblique slot 16 and is intended to provide directional movement of the wire 2.

The retaining channel 15 is formed by a through circular slot 18 made perpendicular to the longitudinal axis of the beam 3, and is intended for coaxial placement of a wire-supporting rotary sleeve 6 therein (Fig. 7).

The sleeve 6 is made with an outer diameter corresponding to the diameter of the retaining channel 15, provided with an open through longitudinal groove 19, conjugated with its axial hole 20, a through uncut hole 21 for the locking bolt 22 (Fig. 3) and flats 23 for the tool (Fig. 7) . The sleeve 6 is placed in the holding channel 15 with the possibility of rotation until its longitudinal groove 19 is aligned with the guide channel 14 for free passage of the wire 2 into its axial hole 20 and can be rotated overlapping the longitudinal groove 19 after the specified passage of the wire 2, until its through hole is aligned 21 for the locking bolt 22 with a through hole 24 (Fig. 6), made in the traverse 3 under the same bolt 22 (Fig. 3), to prevent the wire 2 from returning from the sleeve 6 and to secure the sleeve 6 to avoid its circular and transverse movement relative to the yoke. The sleeve 6 is fixed by a locking bolt 22, passed into the combined holes 21 and 24 and fixed outside the yoke 3 with a washer and nut. The sleeve may be secured with a locking bolt screwed into aligned holes, including a through threaded hole of the sleeve itself and a blind hole of the crosshead.

Traverse 3 and end inserts 12 are made of epoxy fiberglass, sleeve 6 is made of polyamide.

When installing the bracket 1, its traverse 3 with the channel-forming slots 16-18 previously made in it is fixed on the support 5 in the “on the edge” position and the sleeve 6 is placed in channel 15 in the open position of its longitudinal groove 19 in channel 14. When wire 2 passes through the bracket 1 wire 2 is inserted sequentially into the channels 13, 14 and into the axial hole 20 of the sleeve 6, after which the sleeve 6 is rotated about 180 °, changing the position of the sleeve 6 to the closed one and preventing the loss of wire 2. In the closed position, the sleeve 6 is fixed with a bolt 22.

The bracket operates in mechanical load mode under gravity. The wire inserted into the axial hole of the sleeve is in a sliding position in the state of working tension.

The claimed bracket provides unhindered transit passage and suspension of the communication wire.

The bracket of the proposed design is made on equipment for the production of polymer, reinforced and non-reinforced products and on metallurgical equipment for the production of products from non-ferrous metal alloys.

Claims (14)

1. Suspension bracket for a communication wire of a transport electric drive means, comprising a traverse made of a dielectric material with a rectangular cross section, fixed at one end on a support in the “on the edge” position, a wire support element mounted on the other, free end of the beam, and fastening means, characterized in that the traverse is made of a box-shaped hollow profile, reinforced by glued end inserts at both ends, is provided with a system of wire passage channels at the free end, including leading input, guiding and holding channels, successively passing into each other, formed by through slots, the input channel is formed by an oblique slot made along the thickness of the beam at an angle of 20 ° -45 ° to its longitudinal axis to a depth of 0.4-0.6 its width, and is intended to provide an undirected free passage of the wire, the guide channel is formed by a longitudinal slot parallel to the longitudinal axis of the beam, milled along the inner edge of the oblique slot, and is designed to provide directional movement The said wire is held, the holding channel is formed by a round slot made perpendicular to the longitudinal axis of the beam, and is designed to coaxially place a wire-supporting element in it, the latter is made in the form of a rotary sleeve with an outer diameter corresponding to the diameter of the holding channel, equipped with an open through longitudinal groove mating with it axial hole, and a through, threaded or uncut hole for the locking bolt, the sleeve is placed in the holding channel with the possibility of rotation up to the placement of its longitudinal groove with a guide channel for free passage of the waveguide wire into its axial hole and with the possibility of rotation to overlap the specified groove after the wire passes until its hole for the locking bolt is aligned with a through or blind hole made in the traverse for the same bolt, to prevent self-returning wire exit from the sleeve and to secure the sleeve to prevent its circular and transverse movement relative to the yoke, the sleeve is fixed with a locking bolt, missing or screwed nym into aligned holes, wherein the crosspiece and the insert made of composite material based on a fibrous reinforcing material and polymer binder, the sleeve - of a polymeric material or a metal alloy. 2. The bracket according to claim 1, characterized in that the end inserts are glued to the ends of the beam to a height of 0.8-0.95 of the width of the beam to ensure moisture drainage. 3. The bracket according to claim 1, characterized in that the sleeve is made with flats under the tool for rotation. 4. The bracket according to claim 1, characterized in that the sleeve for the locking bolt is made with a through uncut hole, and the beam is with a through hole, while the locking bolt is passed through the indicated aligned holes and fixed outside the beam with a washer and nut. 5. The bracket according to claim 1, characterized in that the sleeve for the locking bolt is made with a through threaded hole, and the yoke with a blind hole, while the locking bolt is screwed into the aligned holes. 6. The bracket according to claim 1, characterized in that the means of fastening the bracket to the support of rectangular cross section include at least one metal profile with stiffeners, mainly angular, studs, bolts, nuts and washers. 7. The bracket according to claim 1, characterized in that the means of fastening the bracket to the support of circular cross section include a U-shaped clamp with nuts and washers. 8. The bracket according to claim 1, characterized in that unidirectional materials, such as rovings, and / or orthotropic materials, such as tapes, canvases, mats, veils or fabrics, are used as the reinforcing material in the composite material of the traverse and inserts. 9. The bracket according to claim 8, characterized in that glass, basalt, carbon or polymer fiber or a combination thereof is used as a reinforcing fiber for rovings, tapes, canvases, mats, veils or fabrics. 10. The bracket according to claim 1, characterized in that a binder based on thermosetting or thermoplastic resins, mainly epoxy, polyester, vinyl ester, phenolic, polyurethane, or a combination thereof, is used as a polymeric binder of the composite yoke and inserts. 11. The bracket according to claim 1, characterized in that polystyrene, polyamide, polypropylene or fluoroplastic is used as the polymer for the manufacture of the sleeve. 12. The bracket according to claim 1, characterized in that as the material for the manufacture of the sleeve used is an alloy of non-ferrous metals with low hardness, mainly bronze or brass. 13. The bracket according to claim 1, characterized in that it is intended for suspension of a waveguide wire of a train radio communication. 14. The bracket according to claim 1, characterized in that it is intended for suspension of a telephone, telegraph or radiofication wire of low current communication of tram or trolleybus electric vehicles.

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