Integrated inter-line anti-galloping device pair

Abstract

The utility model provides an integrated inter-line anti-galloping device pair, and relates to the technical field of electrified railway contact networks, the integrated inter-line anti-galloping device pair comprises a phase-to-phase spacer and two pre-twisted armored suspension clamps, and the pre-twisted armored suspension clamps are rotatably connected with the end portion of the phase-to-phase spacer; the pre-twisted armored suspension clamp comprises a first hooping piece, a second hooping piece, a hollow shaft sleeve and a locking assembly, the first hooping piece and the second hooping piece are used for hooping the cable; a first lock hole is formed in the first hooping piece; a second lock hole is formed in the second hooping piece; a third lock hole is formed in the end part of the phase-to-phase spacer; limiting protrusions protruding outwards in the radial direction are arranged at the two ends of the hollow shaft sleeve correspondingly, and the hollow shaft sleeve is arranged in the first lock hole and the third lock hole in a sleeving mode and located between the two limiting protrusions. The locking assembly locks the first hooping piece and the second hooping piece through the hollow shaft sleeve and the second lock hole.

Description

Technical Field

[0001] This utility model relates to the field of electrified railway catenary technology, and in particular to an integrated anti-skid device for line connections. Background Technology

[0002] With the development of electrified railways in my country, the performance requirements for the components of the electrified railway contact network are becoming increasingly stringent. In recent years, several incidents of contact network galloping have occurred in Northeast and North my country, causing damage to contact network hardware and insulators, broken strands of additional conductors, wire breaks, flashovers, and tripping, seriously threatening train operation safety and personnel safety.

[0003] The anti-galloping devices currently used on the additional conductors of electrified railway overhead contact lines consist of multiple components, including insulators, separate suspension clamps, and more than twenty pre-twisted monofilaments. Because the anti-galloping devices are typically installed in the center of the span, and the multiple components are independent units, they are difficult to carry and often fall off during construction. Installing multiple pre-twisted monofilaments one by one also causes numerous inconveniences. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated anti-flashover device for lines, so as to alleviate the technical problem of inconvenient installation in the prior art.

[0005] The integrated anti-flying device for line interphase provided by this utility model includes: a phase-to-phase spacer bar and two pre-twisted armored suspension clamps, wherein the pre-twisted armored suspension clamps are rotatably connected to the ends of the phase-to-phase spacer bar.

[0006] The pre-twisted armored suspension clamp includes a first clamping member, a second clamping member, a hollow bushing, and a locking assembly; the first clamping member and the second clamping member are used to clamp the wire;

[0007] The first clamping member is provided with a first locking hole; the second clamping member is provided with a second locking hole; the end of the interphase spacer is provided with a third locking hole; the two ends of the hollow bushing are respectively provided with limiting protrusions that protrude radially outward, and the hollow bushing is sleeved in the first locking hole and the third locking hole, and both are located between the two limiting protrusions;

[0008] The locking assembly locks the first clamping member and the second clamping member through the hollow bushing and the second locking hole.

[0009] Furthermore, the first clamping member and the second clamping member are rotatably connected by a rotating shaft.

[0010] Furthermore, the locking assembly includes a bolt and a nut. The bolt includes a head and a threaded rod. The outer diameter of the head is larger than the outer diameter of the threaded rod and smaller than the inner diameter of the hollow bushing. The head is connected to one end of the threaded rod. The threaded rod is used to pass through the hollow bushing and the second locking hole and then be threadedly connected to the nut.

[0011] Furthermore, the screw is provided with a pin hole that penetrates its side wall, the pin hole and the head are respectively located at opposite ends of the bolt, and a locking pin is provided in the pin hole.

[0012] Furthermore, the nut is a stop-release nut.

[0013] Furthermore, a self-lubricating bushing is provided inside the second lock hole.

[0014] Furthermore, the side walls of the first and second clamping members are provided with grooves for installing the twisted wire pieces.

[0015] Furthermore, along the circumference of the pre-stretched armored suspension clamp, there are four grooves.

[0016] Furthermore, it also includes twisted wire pieces, which consist of multiple glued filaments, with one twisted wire piece installed in each of the grooves.

[0017] Furthermore, elastic pads are provided on the clamping surfaces of the first clamping member and the second clamping member.

[0018] This utility model has at least the following advantages or beneficial effects:

[0019] The integrated anti-flickering device provided by this utility model includes: a phase spacer bar and two pre-twisted armored suspension clamps, wherein the pre-twisted armored suspension clamps are rotatably connected to the ends of the phase spacer bar; the pre-twisted armored suspension clamps include a first clamping member, a second clamping member, a hollow bushing, and a locking assembly; the first clamping member and the second clamping member are used to clamp the wires; the first clamping member is provided with a first locking hole; the second clamping member is provided with a second locking hole; the end of the phase spacer bar is provided with a third locking hole; both ends of the hollow bushing are respectively provided with radially outward protrusions, and the hollow bushing is sleeved in the first locking hole and the third locking hole, and both are located between the two limiting protrusions; the locking assembly locks the first clamping member and the second clamping member through the hollow bushing and the second locking hole.

[0020] In use, the two twisted armored suspension clamps are tightened to the two wires. The specific tightening steps are as follows: first, unlock the locking assembly; then, use the first and second clamping members to tighten the wires; finally, lock the first and second clamping members to connect the wires. The phase spacer is connected to the first clamping member via a hollow pin and is not detachable. Compared with the original anti-galloping products, this reduces the number of parts that construction personnel need to carry while climbing during installation, saving installation time. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 A side view of an integrated anti-fighting device assembly provided for an embodiment of this utility model;

[0023] Figure 2 A front view of an integrated anti-fighting device assembly provided in an embodiment of this utility model;

[0024] Figure 3 for Figure 1 A sectional view along the A-A direction;

[0025] Figure 4 for Figure 2 A magnified view of a portion of position B in the middle;

[0026] Figure 5 A schematic diagram of the twisted wire piece of the integrated anti-flicker device assembly provided in this embodiment of the utility model.

[0027] Icons: 1 - Interphase spacer; 11 - Third locking hole; 2 - Pre-twisted armored suspension clamp; 21 - First clamping member; 211 - First locking hole; 22 - Second clamping member; 221 - Second locking hole; 23 - Shaft; 3 - Hollow bushing; 31 - Limiting protrusion; 4 - Thread; 51 - Bolt; 511 - Pin hole; 52 - Nut; 7 - Twisted wire; 9 - Self-lubricating bushing. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] like Figure 1 - Figure 5 As shown, the integrated anti-galling device provided by this utility model connects the feeder and protection line, and the return line and ground line, effectively suppressing conductor galloping.

[0035] Specifically, it includes: phase spacer 1 and two pre-twisted armored suspension clamps 2. The two pre-twisted armored suspension clamps 2 are rotatably connected to both ends of the phase spacer 1, and the two pre-twisted armored suspension clamps 2 are respectively connected to two wires 4.

[0036] The pre-twisted armored suspension clamp 2 includes a first clamping member 21, a second clamping member 22, a hollow bushing 3, and a locking assembly.

[0037] The first clamping member 21 and the second clamping member 22 are rotatably connected by a rotating shaft 23, and opening and closing are achieved by rotation to change the opening degree of the first clamping member 21 and the second clamping member 22. The first clamping member 21 and the second clamping member 22 are used to clamp the thread 4.

[0038] At the opposite end of the rotating shaft 23, the first clamping member 21 is provided with a first locking hole 211, and the second clamping member 22 is provided with a second locking hole 221. The first locking hole 211 and the second locking hole 221 are coaxially arranged in the clamped state.

[0039] The end of the spacer bar 1 is provided with a third locking hole 11. The end of the spacer bar 1 is arranged side by side with the first clamping member 21, and both the first locking hole 211 and the third locking hole 11 are passed through by the hollow bushing 3. Axially, the left and right ends of the hollow bushing 3 are provided with limiting protrusions 31 that protrude radially outward. The area between the two limiting protrusions 31 accommodates the portion forming the first locking hole 211 and the portion forming the third locking hole 11. The limiting protrusions 31 on both sides connect the first clamping member 21 and the spacer bar 1 into a whole structure that cannot be disassembled.

[0040] The hollow bushing 3 and the second clamping member 22 are spaced apart and do not contact each other.

[0041] The locking assembly may include a bolt 51 and a nut 52. The bolt 51 includes a head and a threaded rod. The outer diameter of the head is larger than the outer diameter of the threaded rod but smaller than the inner diameter of the hollow bushing 3. The head is connected to one end of the threaded rod. The head of the bolt 51 cannot pass through the hollow bushing 3, thus serving as a stop and limiting element. The threaded rod passes through the hollow bushing 3 and the second locking hole 221 and is threadedly connected to the nut 52 to lock the first clamping member 21 and the second clamping member 22.

[0042] To further enhance safety, a pin hole 511 is provided on the side wall of the end of the screw away from the head. When the nut 52 is tightened, a locking pin is inserted into the pin hole 511 to prevent the nut 52 from moving away from the head. Furthermore, the nut 52 can also act as a stop-loosening nut. When the nut 52 loosens under stress or movement, the stop-loosening nut provides secondary protection, maintaining the tightness of the armored suspension bolt 51 to the first clamping member 21 and the second clamping member 22, preventing the bolt 51 from loosening, and further improving safety.

[0043] The second locking hole 221 is provided with a self-lubricating bushing 9, which improves the wear resistance and fatigue resistance of the fittings, effectively enhances the anti-galloping device's ability to suppress galloping, and greatly improves the wear resistance and fatigue resistance of the anti-galloping device in high-speed railways and overhead contact lines.

[0044] The first clamping member 21 and the second clamping member 22 have grooves on their side walls for installing the stranded wire pieces 7. There are four grooves along the circumference of the pre-twisted armored suspension clamp 2. After clamping the wire 4, it can be fixed by winding with the stranded wire pieces 7. Each stranded wire piece 7 consists of multiple adhesive filaments, and one stranded wire piece 7 is installed in each groove. Using the stranded wire pieces 7 provides uniform gripping force, eliminates stress concentration, has a large clamping length, and a wide clamping range, effectively improving the stiffness of the additional conductor, reducing the stress and strain of the additional conductor at the hanging point, and enhancing its fatigue resistance. The installation of the stranded wire pieces 7 requires no additional tools; the installation can be completed by hand.

[0045] The clamping surfaces of the first clamping member 21 and the second clamping member 22 are provided with elastic rubber pads, which play a role in preventing wear and reducing vibration.

[0046] In use, the two twisted armored suspension clamps are tightened to the two wires 4. The specific tightening steps are as follows: first, unlock the locking assembly, then tighten the wires 4 using the first clamping member 21 and the second clamping member 22, and then lock the first clamping member 21 and the second clamping member 22 to connect the wires 4. The phase spacer 1 is connected to the first clamping member 21 by a hollow pin and is not detachable. Compared with the original anti-galloping product, this reduces the number of parts that construction personnel need to carry when climbing during installation, thus saving installation time.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An integrated anti-flickering device for lines, characterized in that, include: The phase spacer (1) and two pre-twisted armored suspension clamps (2) are rotatably connected to the end of the phase spacer (1). The pre-twisted armored suspension clamp (2) includes a first clamping member (21), a second clamping member (22), a hollow bushing (3), and a locking assembly; the first clamping member (21) and the second clamping member (22) are used to clamp the wire (4); The first clamping member (21) is provided with a first locking hole (211); the second clamping member (22) is provided with a second locking hole (221); the end of the interphase spacer (1) is provided with a third locking hole (11); the two ends of the hollow bushing (3) are respectively provided with limiting protrusions (31) protruding outward along the radial direction, and the hollow bushing (3) is sleeved in the first locking hole (211) and the third locking hole (11), and both are located between the two limiting protrusions (31); The locking assembly locks the first clamping member (21) and the second clamping member (22) through the hollow bushing (3) and the second locking hole (221).

2. The integrated anti-fighting device assembly according to claim 1, characterized in that, The first clamping member (21) and the second clamping member (22) are rotatably connected by a rotating shaft (23).

3. The integrated anti-fighting device assembly according to claim 1, characterized in that... The locking assembly includes a bolt (51) and a nut (52). The bolt (51) includes a head and a screw. The outer diameter of the head is larger than the outer diameter of the screw and smaller than the inner diameter of the hollow bushing (3). The head is connected to one end of the screw. The screw is used to pass through the hollow bushing (3) and the second locking hole (221) and then be threaded to the nut (52).

4. The integrated anti-fighting device assembly according to claim 3, characterized in that, The screw is provided with a pin hole (511) that penetrates its side wall. The pin hole (511) and the head are located at opposite ends of the bolt (51). A locking pin is provided in the pin hole (511).

5. The integrated anti-fighting device assembly according to claim 3, characterized in that, The nut (52) is a stop nut.

6. The integrated anti-fighting device assembly according to claim 1, characterized in that, A self-lubricating bushing (9) is provided inside the second lock hole (221).

7. The integrated anti-fighting device assembly according to claim 1, characterized in that, The first clamping member (21) and the second clamping member (22) are provided with grooves for installing the twisted wire pieces (7) on their side walls.

8. The integrated anti-fighting device assembly according to claim 7, characterized in that, Along the circumference of the pre-stretched armored suspension clamp (2), there are four grooves.

9. The integrated anti-fighting device assembly according to claim 8, characterized in that, It also includes a twisted wire sheet (7), which comprises multiple glued wires, and one twisted wire sheet (7) is installed in each of the grooves.

10. The integrated anti-fighting device assembly according to claim 1, characterized in that, Elastic pads are provided on the clamping surfaces of the first clamping member (21) and the second clamping member (22).

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