An additional line ground suspension device

Abstract

The utility model discloses an additional line grounding suspension device relates to electrified railway suspension device technical field. The device includes triangle connecting plate, corner hanging plate, casing and prestranded wire clamp. Triangle connecting plate has mounting hole, and upper mounting hole is connected through bolt with suspension crossbeam, and lower mounting hole is riveted connection through expansion pin with corner hanging plate upper mounting hole, and corner hanging plate lower mounting hole is connected through expansion pin with casing, and casing outside winding has prestranded wire clamp with ground wire, and ground wire is connected with the fastening bolt of suspension crossbeam. The utility model provides an additional line grounding suspension device, connects through expansion pin and adds the self -lubricating bushing of anti -wear, has reduced the structure clearance of connecting position, has improved the electrical performance of suspension device connecting position leak -flow channel, has realized the stable reliable ground function, has reduced the number of parts, has improved the installation efficiency of high altitude construction operation, has reduced the construction difficulty.

Description

Technical Field

[0001] This utility model relates to the technical field of suspension devices for electrified railways, and in particular to an additional line grounding suspension device. Background Technology

[0002] In electrified railway overhead contact lines, the use of suspension fixing for auxiliary lines is a common structural form. Suspension fixing structures offer good fatigue and vibration resistance, significantly extending the service life of the conductors. However, suspension structures also have disadvantages. When current flows through the auxiliary line, it leaks through the suspension structure components to the support and ground. Since the various metal components of the suspension structure are usually bolted together, unavoidable structural gaps exist. This can lead to gap discharge and ablation problems during current leakage. Over time, this can severely damage the metal components, reduce mechanical strength, and cause wear at the bolted joints, leading to larger structural gaps and exacerbating gap discharge and ablation, threatening the safe operation of the overhead contact line.

[0003] To address the aforementioned issues, existing technologies typically involve adding a separate grounding wire to the auxiliary line and connecting it to the support column. This method essentially adds a parallel discharge path and does not improve the electrical connection performance of the suspension structure itself. Current still flows through the gaps in the original suspension structure, and the ablation problem is only mitigated, not eliminated. Furthermore, this solution is structurally complex, increases additional component costs and installation and maintenance workload, and is particularly inconvenient in high-altitude working environments. Therefore, there is an urgent need in the field for a device that can fundamentally optimize the electrical connection performance of the suspension point, integrating reliable grounding functionality with mechanical suspension functionality, thereby eliminating gap discharge and simplifying the structure for easier construction. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present invention provides an additional grounding suspension device. By adopting an expansion pin connection structure and adding an anti-wear self-lubricating bushing, the structural gap of the connection part is reduced, the electrical performance of the discharge channel of the suspension device connection part is improved, and the reliability and stability of the grounding of the suspension device are improved.

[0005] This utility model provides an auxiliary grounding suspension device, including a triangular connecting plate, a corner hanging plate, a housing, and a pre-twisted wire clamp;

[0006] The triangular connecting plate has a first mounting hole and a second mounting hole at the top and a third mounting hole at the bottom; the corner hanging plate has a fourth mounting hole and a fifth mounting hole at the top and a sixth mounting hole at the bottom; and the housing has a seventh mounting hole and an eighth mounting hole at the top.

[0007] The first mounting hole and the second mounting hole are fixedly connected to the suspension beam by a first locking member; the third mounting hole is fixedly connected to the fourth mounting hole and the fifth mounting hole by a second locking member; the sixth mounting hole is fixedly connected to the seventh mounting hole and the eighth mounting hole by a third locking member.

[0008] The pre-twisted wire clamp is wound around the outside of the casing. The pre-twisted wire clamp has grounding wires at both ends, and the grounding wires are connected to the suspension beam.

[0009] Furthermore, the first mounting hole and the second mounting hole are through holes, and the inner wall of the third mounting hole is inlaid with a first self-lubricating bushing, which is interference-fitted with the inner wall of the third mounting hole.

[0010] Furthermore, the inner walls of the fourth and fifth mounting holes are inlaid with flanged self-lubricating bushings, which are interference-fitted with the inner walls of the fourth and fifth mounting holes.

[0011] Furthermore, a second self-lubricating bushing is embedded in the inner wall of the eighth mounting hole, and the second self-lubricating bushing is interference-fitted with the inner wall of the eighth mounting hole.

[0012] Furthermore, the first locking element is a bolt assembly.

[0013] Furthermore, the second locking element is an expansion pin.

[0014] Furthermore, the sixth mounting hole and the seventh mounting hole are riveted together by a hollow expansion pin, and the hollow part of the hollow expansion pin is fixedly connected to the eighth mounting hole by the third locking member.

[0015] Furthermore, the third locking element is a bolt assembly.

[0016] Furthermore, the casing includes a first casing and a second casing, and the bottoms of the first casing and the second casing are connected and fixed by a pin.

[0017] Furthermore, the end of the grounding wire is provided with a terminal block, which is fastened to the mounting hole on the suspension beam by a bolt assembly.

[0018] This utility model provides an additional grounding suspension device, which reduces the structural gap at the connection part by adopting an expansion pin connection structure and adding a wear-resistant self-lubricating bushing, improves the electrical performance of the discharge channel at the connection part of the suspension device, improves the reliability and stability of the grounding of the suspension device, greatly reduces the number of parts, improves the installation efficiency of high-altitude construction operations, and reduces the construction difficulty. Attached Figure Description

[0019] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the structure of an additional grounding suspension device provided in an embodiment of this utility model;

[0021] Figure 2 A schematic diagram of the structure of a triangular connecting plate for an additional grounding suspension device provided in an embodiment of this utility model;

[0022] Figure 3 A cross-sectional view of a triangular connecting plate of an additional grounding suspension device provided in an embodiment of this utility model;

[0023] Figure 4 A schematic diagram of the structure of a corner hanging plate of an auxiliary grounding suspension device provided in an embodiment of this utility model;

[0024] Figure 5 A cross-sectional view of a corner mounting plate of an additional grounding suspension device provided in an embodiment of this utility model;

[0025] Figure 6 A schematic diagram of the structure of a housing for an additional grounding suspension device provided in an embodiment of this utility model;

[0026] Figure 7 A schematic diagram of the connection structure of each component of an additional grounding suspension device provided for an embodiment of this utility model;

[0027] Figure 8 A schematic diagram of the structure of an auxiliary grounding suspension device provided in this embodiment of the present invention, showing the triangular connecting plate and the corner hanging plate connected by expansion pin riveting;

[0028] Figure 9 A schematic diagram of the structure of an additional grounding suspension device provided in another embodiment of the present invention, showing the triangular connecting plate and the corner hanging plate fastened together by a bolt assembly;

[0029] Figure 10 This is a schematic diagram of the structure of an additional grounding suspension device according to another embodiment of the present invention, in which the corner hanging plate and the housing are directly fastened together by a bolt assembly.

[0030] Among them, 100-triangular connecting plate; 101-first mounting hole; 102-second mounting hole; 103-third mounting hole; 104-first self-lubricating bushing; 105-first locking element; 200-corner hanging plate; 201-fourth mounting hole; 202-fifth mounting hole; 203-sixth mounting hole; 204-flanged self-lubricating bushing; 205-second locking element; 300-sleeve; 301-first sleeve; 302-second sleeve; 303-seventh mounting hole; 304-eighth mounting hole; 305-second self-lubricating bushing; 306-third locking element; 307-hollow expansion pin; 308-pin; 400-pre-twisted wire clamp; 401-grounding wire. Detailed Implementation

[0031] 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, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] The terminology used in the embodiments of this utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The singular forms "a," "the," and "the" as used in the embodiments of this utility model are also intended to include the plural forms unless the context clearly indicates otherwise.

[0033] It should be understood that although the terms first, second, third, etc., may be used to describe the acquisition modules in the embodiments of this utility model, these acquisition modules should not be limited to these terms. These terms are only used to distinguish the acquisition modules from each other.

[0034] Depending on the context, the word "if" as used here can be interpreted as "when," "when," "in response to determination," or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination," "in response to determination," "when detection (of the stated condition or event)," or "in response to detection (of the stated condition or event)."

[0035] It should be noted that the directional terms such as "upper," "lower," "left," and "right" used in the description of the embodiments of this utility model are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this utility model. In addition, in the context, it should also be understood that when it is mentioned that an element is formed "upper" or "lower" of another element, it can not only be formed directly "upper" or "lower" of the other element, but also indirectly "upper" or "lower" of the other element through an intermediate element.

[0036] like Figure 1-10 An auxiliary grounding suspension device shown includes a triangular connecting plate 100, a corner hanging plate 200, a housing 300, and a pre-twisted wire clamp 400.

[0037] For details, please refer to Figure 2 , 3 The triangular connecting plate 100 has a first mounting hole 101 and a second mounting hole 102 on the upper part and a third mounting hole 103 on the lower part. The first mounting hole 101 and the second mounting hole 102 are through holes. The inner wall of the third mounting hole 103 is inlaid with a first self-lubricating bushing 104, and the first self-lubricating bushing 104 is interference-fitted with the inner wall of the third mounting hole 103.

[0038] refer to Figure 4 , 5 The corner mounting plate 200 has a fourth mounting hole 201 and a fifth mounting hole 202 on the upper part and a sixth mounting hole 203 on the lower part. The inner walls of the fourth mounting hole 201 and the fifth mounting hole 202 are inlaid with a flanged self-lubricating bushing 204, which is interference-fitted with the inner walls of the fourth mounting hole 201 and the fifth mounting hole 202.

[0039] refer to Figure 6 The housing 300 includes a first housing 301 and a second housing 302. The bottoms of the first housing 301 and the second housing 302 are connected and fixed by a pin 308. The housing 300 is provided with a seventh mounting hole 303 and an eighth mounting hole 304. The seventh mounting hole 303 is provided on the first housing 301, and the eighth mounting hole 304 is provided on the second housing 302. A second self-lubricating bushing 305 is embedded in the inner wall of the eighth mounting hole 304, and the second self-lubricating bushing 305 is interference-fitted with the inner wall of the eighth mounting hole 304.

[0040] refer to Figure 7 The first mounting hole 101 and the second mounting hole 102 on the upper part of the triangular connecting plate 100 are fixedly connected to the suspension beam through the first locking member 105. Preferably, the first locking member 105 is a bolt assembly. The first mounting hole 101 and the second mounting hole 102 are fastened to the suspension beam through the bolt assembly. The bolt assembly includes a bolt, a nut and a washer.

[0041] The third mounting hole 103 is fixedly connected to the fourth mounting hole 201 and the fifth mounting hole 202 by the second locking member 205. Preferably, as shown in the reference... Figure 8 The second locking element 205 is an expansion pin. The third mounting hole 103 is riveted to the fourth mounting hole 201 and the fifth mounting hole 202 by the expansion pin. The expansion pin expands and tightens in the mounting hole through plastic deformation, which can more effectively eliminate play and maintain a tight connection under long-term vibration environment. Moreover, the expansion pin structure is simpler and the installation efficiency is higher. Optional, refer to Figure 9 The second locking element 205 can also be fastened with a bolt assembly, which can improve the convenience of assembling multiple types of wires.

[0042] The sixth mounting hole 203 is fixedly connected to the seventh mounting hole 303 and the eighth mounting hole 304 by a third locking member 306. Preferably, the sixth mounting hole 203 and the seventh mounting hole 303 are riveted together by a hollow expansion pin 307. The two ends of the hollow expansion pin 307 are flanged. The hollow part of the hollow expansion pin 307 is then fixedly connected to the eighth mounting hole 304 by the third locking member 306. The third locking member 306 is a bolt assembly. Thus, the riveting connection by the hollow expansion pin 307 can form a permanent, gapless connection between the sixth mounting hole and the seventh mounting hole, with a large contact area and high pressure. The expansion pin forms a stable, low-resistance electrical path. Compared to the point-to-line contact of threads, which is prone to gap discharge and ablation, the surface contact of the expansion pin optimizes electrical performance and avoids the discharge risk at the connection point. Then, the hollow part of the central control expansion pin 307 and the eighth mounting hole 308 are connected by a bolt assembly to complete the closure and fixation of the casing. In this composite connection method, the hollow expansion pin bears the main shear force and vibration load, resulting in better vibration resistance. The bolt assembly does not bear the main shear force, greatly reducing its risk of loosening. This makes the device in this embodiment have better electrical performance, greater mechanical stability, and higher reliability. Optionally, refer to Figure 10 The inner walls of the sixth mounting hole 203 and the seventh mounting hole 303 are also inlaid with the second self-lubricating bushing 305 and are interference-fitted with the inner wall of the mounting hole. The sixth mounting hole 203, the seventh mounting hole 303 and the eighth mounting hole 304 are directly fastened by bolt assembly, which can improve the convenience of assembling multiple types of wires.

[0043] The outer casing 300 is wrapped with a pre-twisted wire clamp 400. The pre-twisted wire clamp 400 has a grounding wire 401 at both ends. The grounding wire 401 is connected to the suspension beam. Specifically, the end of the grounding wire 401 is provided with a terminal block. The terminal block is fastened to the mounting hole on the suspension beam by a bolt assembly.

[0044] This utility model provides an additional grounding suspension device, which reduces the structural gap at the connection part by adopting an expansion pin connection structure and adding a wear-resistant self-lubricating bushing, improves the electrical performance of the discharge channel at the connection part of the suspension device, improves the reliability and stability of the grounding of the suspension device, greatly reduces the number of parts, improves the installation efficiency of high-altitude construction operations, and reduces the construction difficulty.

[0045] The above description is merely a preferred embodiment of this utility model. Those skilled in the art should understand that the scope of disclosure involved in this utility model is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalent features without departing from the above-described concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this utility model.

Claims

1. An auxiliary grounding suspension device, characterized in that, Includes triangular connecting plates, corner hanging plates, casings, and pre-twisted wire clamps; The triangular connecting plate has a first mounting hole and a second mounting hole at the top and a third mounting hole at the bottom; the corner hanging plate has a fourth mounting hole and a fifth mounting hole at the top and a sixth mounting hole at the bottom; and the housing has a seventh mounting hole and an eighth mounting hole at the top. The first mounting hole and the second mounting hole are fixedly connected to the suspension beam by a first locking member; the third mounting hole is fixedly connected to the fourth mounting hole and the fifth mounting hole by a second locking member; the sixth mounting hole is fixedly connected to the seventh mounting hole and the eighth mounting hole by a third locking member. The pre-twisted wire clamp is wound around the outside of the casing. The pre-twisted wire clamp has grounding wires at both ends, and the grounding wires are connected to the suspension beam.

2. The additional grounding suspension device according to claim 1, characterized in that, The first mounting hole and the second mounting hole are through holes, and the inner wall of the third mounting hole is inlaid with a first self-lubricating bushing, which is interference-fitted with the inner wall of the third mounting hole.

3. The additional grounding suspension device according to claim 1, characterized in that, The inner walls of the fourth and fifth mounting holes are fitted with flanged self-lubricating bushings, which are interference-fitted with the inner walls of the fourth and fifth mounting holes.

4. The additional grounding suspension device according to claim 1, characterized in that, The inner wall of the eighth mounting hole is fitted with a second self-lubricating bushing, and the second self-lubricating bushing is interference-fitted with the inner wall of the eighth mounting hole.

5. The additional grounding suspension device according to claim 1, characterized in that, The first locking component is a bolt assembly.

6. The additional grounding suspension device according to claim 1, characterized in that, The second locking element is an expansion pin.

7. The additional grounding suspension device according to claim 4, characterized in that, It also includes the sixth mounting hole and the seventh mounting hole being riveted together by a hollow expansion pin, and the hollow part of the hollow expansion pin being fixedly connected to the eighth mounting hole by the third locking member.

8. The additional grounding suspension device according to claim 7, characterized in that, The third locking component is a bolt assembly.

9. The additional grounding suspension device according to claim 1, characterized in that, The casing includes a first casing and a second casing, and the bottoms of the first casing and the second casing are connected and fixed by a pin.

10. The additional grounding suspension device according to claim 1, characterized in that, The grounding wire is provided with a terminal block at its end, and the terminal block is fastened to the mounting hole on the suspension beam by a bolt assembly.

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