Anti-fatigue additional wire suspension device

Abstract

The utility model relates to an anti-fatigue additional wire suspension device which comprises a cross arm, an insulator and a spring damper. The cross arm is installed on the top of the supporting column. The angle steel is installed at the joint of the top of the supporting column and the end of the cross arm. The insulator is mounted at the other end of the cross arm; the spring damper is mounted below the insulator; the spring damper comprises an inner cylinder, a spring, a sleeve ball head, spherical rubber and an outer ball single lug; according to the utility model, the anti-fatigue performance and the stability of the pre-added wire are improved from multiple aspects, the device has the advantages of rapid installation, wear resistance and vibration reduction, stress concentration prevention, prolonged service life of the added wire and the like, and can solve the problems that an additional wire suspension device has no wear resistance and vibration reduction measures, is inconvenient to install, has no vibration reduction measures and is poor in stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrified railway contact network, and in particular relates to an additional conductor suspension device for an electrified railway contact network additional conductor. Background Art

[0002] Electrified railways are modern railways that use electric locomotives as traction power. The overhead contact network (OCN) is the vital task of transmitting electricity from traction substations directly to electric locomotives and is considered the artery of the electrified railway. Therefore, the quality and operating condition of the OCN directly impact the transportation capacity of the electrified railway. Supplementary conductors, including power lines, reinforcement lines, return lines, autotransformer power lines, protective lines, lightning conductors, and overhead ground wires, are essential components of the OCN. These conductors, including power lines, reinforcement lines, return lines, autotransformer power lines, protective lines, lightning conductors, and overhead ground wires, all require suspension and fixation using an OCN suspension system. Therefore, the quality of these suspension systems directly impacts the safety of the conductors and, ultimately, the OCN. Under complex weather conditions such as wind, snow, and ice, OCN conductors can experience severe galloping, vibration, and violent swinging. These can easily lead to localized fatigue and stress concentration, resulting in conductor breakage or severe structural wear, severely impacting the normal operation of the electrified railway OCN.

[0003] Current additional conductor suspension systems are composed of rigid components, resulting in poor energy absorption and a lack of system frequency adjustment. Wind-induced system resonance can easily cause conductor oscillation, leading to wire breakage, strand breakage, and even fracture. Therefore, addressing these issues requires developing an additional conductor suspension system with a simple structure, frequency adjustment, and ease of installation and adjustment. Summary of the Invention

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] An anti-fatigue additional conductor suspension device includes a cross arm, a fixed angle steel, a T-bolt, a column insulator, and a spring damper;

[0006] One end of the cross arm is installed on the top of the H-shaped pillar through a fixed angle steel; the fixed angle steel is fixed to the reserved hole of the H-shaped pillar by bolts; the fixed angle steel is fixed to the cross arm by T-shaped bolts; the other end of the cross arm is fixed to the upper part of the column insulator by T-shaped bolts; the lower part of the column insulator is connected and fixed to the upper part of the spring damper; the lower part of the spring damper is connected to the pre-twisted suspension wire clamp.

[0007] The cross arm includes a first C-shaped channel steel and a second C-shaped channel steel, both of which are rectangular steel pipes and are provided with a through groove in the middle of the lower part.

[0008] Two long holes are arranged in the horizontal plane of the fixed angle steel, and two first circular holes are arranged in the vertical plane.

[0009] The T-shaped bolt comprises a fixed head, a rectangular fixed neck, and a bolt rod from top to bottom. The bolt rod is provided with threads, and a group of diagonal arcs are provided on the fixed head.

[0010] The spring damper comprises an inner cylinder, a sleeve ball head, a spring, a spherical rubber, and an outer ball single ear;

[0011] The lower part of the inner cylinder is wrapped by the sleeve ball head, and a spring is arranged in the middle; the lower part of the sleeve ball head is bonded and wrapped by the inner surface of the spherical rubber; the outer surface of the spherical rubber is bonded and wrapped by the outer ball single ear.

[0012] The upper part of the inner cylinder is a circular flange, and four second circular holes are evenly arranged along the surface of the circular flange; the lower part of the circular flange is connected to a tubular sleeve, and four fixing bosses are arranged at the lower end of the tubular sleeve.

[0013] The sleeve ball head comprises an outer sleeve, a connecting neck and a spherical body in order from top to bottom; a circular groove is arranged on the top of the outer sleeve, and four outward-expanding grooves are arranged along the edge of the circular groove.

[0014] The upper end and the lower end of the spring both form a plane structure.

[0015] The spherical rubber structure is a first spherical shell, and a groove is arranged on the upper end of the first spherical shell.

[0016] The outer ball single ear structure is a second ball shell, with a third circular hole arranged at the upper end and a single ear arranged at the lower end, and a hole opened in the middle of the single ear.

[0017] The advantages and positive effects of the utility model are:

[0018] The utility model realizes the adjustment of the frequency of the additional wire suspension device system by arranging a spring damper, and can absorb the energy of the additional wire vibration, thereby avoiding the fatigue problem of the conductor system caused by the dancing of ice and breeze resonance of the additional wire suspension device; the angle steel structure can be conveniently connected to the H-shaped pillar, and the cross arm is convenient for adjusting the installation position of the additional wire in the horizontal direction. The utility model improves the safety and stability of the additional wire suspension device from many aspects, reduces the occurrence of safety accidents, and is convenient for processing and installation, reducing the difficulty of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of the present invention. In addition, unless otherwise specified, these drawings are intended only to conceptually illustrate the structures described herein and are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of the installation structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the utility model after being subjected to force;

[0022] Figure 3(a) is a schematic cross-sectional view of a first C-shaped channel steel of the present invention;

[0023] Figure 3(b) is a schematic cross-sectional view of a second C-shaped channel steel of the present invention;

[0024] Figure 4 This is a schematic diagram of the fixed angle steel structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the T-bolt structure of the utility model;

[0026] Figure 6 This is a schematic structural diagram of the spring damping assembly of the utility model;

[0027] Figure 7 (a) is a schematic diagram of the inner cylinder structure of the present invention;

[0028] Figure 7(b) is a cross-sectional view of the inner cylinder of the present invention;

[0029] Figure 8 (a) is a schematic diagram of the sleeve ball head structure of the present invention;

[0030] Figure 8(b) is a cross-sectional view of the sleeve ball head of the present invention;

[0031] Figure 9 This is a schematic diagram of the spring structure of the utility model;

[0032] Figure 10 This is a cross-sectional view of the spherical rubber of the present utility model;

[0033] Figure 11(a) is a schematic diagram of the outer ball single ear structure of the utility model;

[0034] Figure 11(b) is a cross-sectional view of a single ear of the outer ball of the present invention; DETAILED DESCRIPTION

[0035] First of all, it should be noted that the specific structure, features and advantages of the present invention will be specifically described below in an illustrative manner. However, all descriptions are for illustration only and should not be understood as limiting the present invention. In addition, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature displayed or implied in the drawings, can still be arbitrarily combined or deleted between these technical features (or their equivalents) to obtain more other embodiments of the present invention that may not be directly mentioned herein. In addition, in order to simplify the drawings, the same or similar technical features may be marked in only one place in the same drawing.

[0036] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0037] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0038] This embodiment provides an anti-fatigue additional conductor suspension device, comprising a cross arm, a fixed angle steel, an insulator, a spring damper, and a pre-twisted suspension clamp;

[0039] like Figure 1 As shown, one end of the crossarm 1 is installed on the top of the H-shaped pillar through a fixed angle steel 2; the fixed angle steel 2 is fixed to the reserved hole of the H-shaped pillar by bolts; the fixed angle steel 2 is connected and fixed to the crossarm 1 by a T-shaped bolt 3; the other end of the crossarm 1 is connected and fixed to the upper part of the column insulator 4 by a T-shaped bolt 3; the lower part of the column insulator 4 is connected and fixed to the upper part of the spring damper 5; the lower part of the spring damper 5 is connected to the pre-twisted suspension clamp 6.

[0040] like Figure 2 As shown, after the additional wire is selected, an oblique downward force is applied to the additional wire suspension device, and the spring damper is stretched downward and twisted to the right, further compressing the spring. The spring damper 5 provides an elastic damping component, which can change the vibration characteristics of the additional wire and absorb the energy of the additional wire vibration, thereby suppressing the vibration.

[0041] like Figure 3(a) 、 3(b)As shown, the crossarm 1 comprises a first C-shaped channel steel 101 and a second C-shaped channel steel 102, both of which are rectangular steel tubes and are symmetrically mounted. A first slot 101a and a second slot 102a are provided in the lower center portion, respectively, for connecting the fixed angle steel and the post insulator at each end via T-bolts. The connection position can be adjusted arbitrarily along the axial direction of the channel steel.

[0042] like Figure 4 As shown, the fixed angle steel 2 includes two long holes 201 set in the horizontal plane and two first circular holes 202 set in the vertical plane. The long holes can meet the needs of fine adjustment along the line direction and facilitate the installation of post insulators.

[0043] like Figure 5 As shown, the T-shaped bolt 3 is composed of a fixing head 301, a rectangular fixing neck 303, and a bolt rod 304 from top to bottom. A thread 305 is provided on the bolt rod 304. A group of arcs 302 are provided at the diagonals of the fixing head 301 to facilitate the insertion, rotation and tightening of the T-shaped bolt; the size of the rectangular fixing neck 303 matches the size of the groove through which the C-shaped channel steel passes, which is convenient for the fixation of the T-shaped bolt 3. In this embodiment, the fixing head 301 can adopt a parallelogram structure, and a group of arcs 302 are provided at the diagonals of the fixing head 301, and a chamfered structure is also provided at the other group of diagonals.

[0044] like Figure 6 As shown, the spring damper 5 includes an inner tube 51, a sleeve ball head 52, a spring 53, a spherical rubber 54, and an outer ball single ear 55; the lower part of the inner tube 51 is wrapped by the sleeve ball head 52, and the spring 53 is arranged in the middle; the lower part of the sleeve ball head 52 is bonded and wrapped by the spherical rubber 54; the outer surface of the spherical rubber 54 is bonded and wrapped by the outer ball single ear 55.

[0045] like Figure 7(a) and 7(b) As shown, the upper portion of the inner tube 51 is a circular flange 511, and four second circular holes 512 are evenly arranged along its surface for connecting to the column insulator; the lower portion of the circular flange 511 is connected to a tubular sleeve 513, and the lower end of the tubular sleeve 513 is provided with four fixing bosses 514 for mounting the clamping spring 53.

[0046] like Figure 8(a) and 8(b) As shown, the sleeve ball head 52 comprises an outer sleeve 523, a connecting neck 524, and a spherical body 525 from top to bottom; a circular groove 521 is formed on the top of the outer sleeve 523, and four outward-expanding grooves 522 are arranged along the edge of the circular groove 521, and the size of the outward-expanding groove 522 matches the fixed boss 514 of the inner sleeve 51.

[0047] like Figure 9 As shown, the upper end of the spring 53 is provided with a first plane 531 , and the lower end is provided with a second plane 532 .

[0048] like Figure 10 As shown, a groove 541 is provided at the upper end of the spherical rubber 54 , and the structure is a first ball shell 542 .

[0049] like Figure 11(a) and 11(b) As shown, the outer ball single ear 55 is structured as a second ball shell 551, with a third circular hole 552 at the upper end for placing the spherical rubber 54 and the spherical body 525 of the sleeve ball head 52. The lower end is provided with a single ear 553, and the middle of the single ear is opened 554 for installing the pre-twisted suspension clamp 6.

[0050] The specific installation process of this utility model is as follows: First, the two crossarms 1 are connected to the fixed angle steel using two sets of T-bolts, and then connected to the post insulator using four sets of T-bolts. Next, the spring damper is installed at the bottom of the post insulator. The entire system is mounted on the top of the H-shaped support column, and the additional wires are connected to the spring damper.

[0051] This new design improves the fatigue resistance and stability of the additional wire in many aspects, and has the advantages of quick installation, wear and vibration reduction, avoidance of stress concentration, and extended service life of the additional wire. It can solve the problems of the additional wire suspension device without wear and vibration reduction measures, inconvenient installation, lack of vibration reduction measures, and poor stability.

[0052] The above embodiments provide a detailed description of the present invention. However, the contents described are merely preferred embodiments of the present invention and should not be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention shall still fall within the scope of the patent application of the present invention.

Claims

1. An anti-fatigue additional wire suspension device, characterized in that: It comprises a cross arm (1), a column insulator (4), and a spring damper (5); One end of the cross arm (1) is mounted on the top of the H-shaped pillar via a fixed angle steel (2); the fixed angle steel (2) is connected and fixed to the reserved hole of the H-shaped pillar via bolts; the fixed angle steel (2) is connected and fixed to the cross arm (1) via T-shaped bolts (3); the other end of the cross arm (1) is connected and fixed to the upper part of the column insulator (4); the lower part of the column insulator (4) is connected and fixed to the upper part of the spring damper (5); the lower part of the spring damper (5) is connected to the pre-twisted suspension wire clamp (6); The spring damper (5) comprises an inner cylinder (51), a sleeve ball head (52), a spring (53), a spherical rubber (54), and an outer ball single ear (55); The lower part of the inner cylinder (51) is wrapped by the sleeve ball head (52), and a spring (53) is arranged between the inner cylinder (51) and the sleeve ball head (52); the lower part of the sleeve ball head (52) is bonded and wrapped by the inner surface of the spherical rubber (54); and the outer surface of the spherical rubber (54) is bonded and wrapped by the outer ball single ear (55).

2. The anti-fatigue additional wire suspension device according to claim 1, characterized in that: The cross arm (1) comprises a first C-shaped channel steel (101) and a second C-shaped channel steel (102), both of which are rectangular steel tubes, and a through first groove (101a) and a through second groove (102a) are respectively provided in the middle below the first C-shaped channel steel (101) and the second C-shaped channel steel (102).

3. The anti-fatigue additional wire suspension device according to claim 1, characterized in that: Two long holes (201) are provided on the horizontal plane of the fixed angle steel (2), and two first circular holes (202) are provided on the vertical plane.

4. The anti-fatigue additional wire suspension device according to claim 1, characterized in that: The T-shaped bolt (3) comprises, from top to bottom, a fixed head (301), a rectangular fixed neck (303), and a bolt rod (304); a thread (305) is provided on the bolt rod (304); and a group of diagonal arcs (302) are provided on the fixed head (301).

5. The anti-fatigue additional wire suspension device according to claim 1, characterized in that: The upper portion of the inner cylinder (51) is a circular flange (511), and four second circular holes (512) are evenly arranged along the surface of the circular flange (511); a tubular sleeve (513) is connected below the circular flange (511), and four fixing bosses (514) are arranged at the lower end of the tubular sleeve (513).

6. The anti-fatigue additional wire suspension device according to claim 1, characterized in that: The sleeve ball head (52) comprises an outer sleeve (523), a connecting neck (524), and a spherical body (525) in order from top to bottom; a circular groove (521) is provided on the surface of the outer sleeve (523), and four outward-expanding grooves (522) are provided along the edge of the circular groove (521).

7. The anti-fatigue additional wire suspension device according to claim 1, characterized in that: The upper end of the spring (53) forms a first plane (531), and the lower end forms a second plane (532).

8. The anti-fatigue additional wire suspension device according to claim 1, characterized in that: The structure of the spherical rubber (54) is a first spherical shell (542), and a groove (541) is provided at the upper end of the first spherical shell (542).

9. The anti-fatigue additional wire suspension device according to claim 1, characterized in that: The outer ball single ear (55) structure is a second ball shell (551), the upper end of the second ball shell (551) is provided with a third circular hole (552), the lower end is provided with a single ear (553), and the middle part of the single ear has a hole (554).

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