Rotatable feedline shoulder mount

Abstract

The utility model belongs to railway power supply system technical field, specifically disclose a rotatable feeder shoulder support, including with the fixed mounting of fixed component, be used for fixing the feeder line component of feeder line and the insulating component between feeder line component and fixed component, set up rotating assembly between insulating component and fixed component, the utility model discloses through adopting rotating assembly, make the feeder line spare and insulating piece when the tension change of external condition can along with the stress size and direction and move, avoid the feeder line clamp fixed point long -term stress, has promoted the service life of feeder line clamp.

Description

Technical Field

[0001] This utility model belongs to the technical field of railway power supply systems, and specifically relates to a rotatable feeder shoulder. Background Technology

[0002] In railway construction, the overhead contact system is the main framework of railway electrification engineering. Feeder lines, as one of the additional conductors of the contact system, are crucial in improving the stability and reliability of the entire traction power supply system. Feeder lines are erected on contact system supports above the railway tracks and are fixed to the supports via feeder shoulder brackets. Traditional fixed feeder shoulder brackets are fixed at one end to the contact system support and at the other end to an insulator. The feeder line is then secured to the tip of the insulator using feeder clamps.

[0003] Traditional fixed feeder shoulder brackets lack rotating parts at the base and feeder ends. When the feeder at the feeder end is subjected to unbalanced forces caused by factors such as terrain conditions or temperature changes over a long period, the non-rotatable nature of the fixed feeder shoulder bracket leads to inconsistent tension on the feeder wires at both ends of the feeder clamp. This can shorten the feeder's lifespan or even cause the feeder to detach from the shoulder bracket, affecting train safety. Furthermore, traditional fixed feeder shoulder brackets typically only secure one feeder, failing to meet the needs of installing multiple feeders, and relying on a single insulator for fixation makes them ill-suited to handle significant environmental risks.

[0004] Furthermore, the existing feeder cable is fixed by a hanging method. If the bolts become loose, the bolts are likely to fall off under the weight of the conductor, causing the conductor to fall from a height. The conductor will also detach from the fixing device and drag the fixing points before and after it, which will also increase the sag and lead to greater danger. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned technical problems and provide a device for fixing feeders that extends the service life of feeders and feeder shoulder brackets, has stronger stability, and lower maintenance costs.

[0006] A rotatable feeder shoulder includes a fixing component fixedly mounted to a support post, a feeder assembly for fixing the feeder, and an insulating component between the feeder assembly and the fixing component, with a rotating component disposed between the insulating component and the fixing component.

[0007] Preferably, the rotating assembly includes an intermediate connector, an insulating assembly is provided with a first connecting end that cooperates with the intermediate connector, and a fixing assembly is provided with a second connecting end that cooperates with the intermediate connector; the two ends of the intermediate connector are respectively hinged to the first connecting end and the second connecting end through a first rotating shaft arranged in the horizontal direction and a second rotating shaft arranged in the vertical direction.

[0008] Preferably, the fixing assembly includes a first fixing angle steel and a second fixing angle steel that clamp the column from the front and rear sides. Fixing bolts and fixing nuts for connecting and fixing the first fixing angle steel and the second fixing angle steel are provided on both the left and right sides of the column. Tightening the fixing bolts and fixing nuts on both sides can clamp the first fixing angle steel and the second fixing angle steel to the outside of the column.

[0009] Preferably, the first and second fixed angle steels that are clamped relative to each other are inverted, with one of their horizontal plates located above the vertical plate of the clamping column plate and the other located below the vertical plate of the clamping column plate.

[0010] Preferably, the first and second fixed angle steels are further provided with adjusting nut columns extending towards the column on the side wall near the column. The adjusting nut columns are offset from the fixed bolts in the vertical direction. Adjusting bolts are screwed on each adjusting nut column. The ends of the adjusting bolts are opposite to the column. Rotating the adjusting bolts can press them against the surface of the column from the left and right sides.

[0011] Preferably, the second fixed angle steel is provided with a second connecting end that cooperates with the intermediate connecting piece.

[0012] Preferably, the intermediate connector is U-shaped, with the middle part of the U-shape fitted around the second rotating shaft installed on the second connecting end, and the two ends of the U-shape located at the first connecting end and fixed to the fixed ear plate by the first rotating shaft.

[0013] Preferably, the part of the intermediate connecting piece that contacts the second fixed angle steel at the bottom outside the second rotating shaft is designed as an arc surface.

[0014] Preferably, the insulating assembly includes a central insulating member and connecting plates on both sides, wherein the connecting plate on the side closer to the central connecting member is provided with a fixed lug extending toward the central connecting member, and the central connecting member is hinged to the fixed lug via a first pivot.

[0015] Preferably, the second fixed angle steel has a top plate extending towards the intermediate connector on the side near the intermediate connector, and the hinged end of the intermediate connector is located between the top plate and the horizontal plate of the second fixed angle steel, and is simultaneously hinged between the top plate and the horizontal plate of the second fixed angle steel via the second pivot.

[0016] Preferably, the second rotating shaft is a pin, which is inserted from above the top plate through the horizontal plate of the intermediate connector and the second fixing angle steel, and a pin hole is provided at the end of the shaft that extends out of the horizontal plate, and a cotter pin for limiting is inserted into the pin hole.

[0017] Preferably, a horizontally extending support plate is provided on the connecting plate on the outer side of the insulating component, and the feeder clamp is horizontally installed above the support plate.

[0018] This utility model has the following advantages compared with the prior art: The rotatable feeder shoulder bracket of this utility model allows the feeder component and the insulation component to move according to the magnitude and direction of the force when the tension of the additional conductor changes due to external conditions such as temperature and wind speed. This overcomes the unbalanced force caused by uneven span (span distance) and changes in conductor length due to temperature, avoids long-term stress on the feeder clamp fixing point, and improves the service life of the feeder clamp.

[0019] The additional conductor is fixed by a top-mounted fixing method, which ensures that even if the bolt at the fixing point fails or comes loose, the conductor will not come loose or be suspended in the air without being subjected to significant external force, thus avoiding tripping or personal injury and improving the power supply stability of the traction substation. Attached Figure Description

[0020] Figure 1 Rotatable feeder shoulder structure diagram (front view) Figure 2 Top view of rotating component structure In the attached diagram: 1. Fixing assembly; 11. First fixing angle steel; 12. Nut; 13. Bolt; 14. Second fixing angle steel; 15. Adjusting nut post; 16. Adjusting bolt; 2. Rotating assembly; 21. Top plate; 22. Second rotating shaft; 23. Intermediate connecting piece; 24. First rotating shaft; 3. Insulation assembly; 31. Insulation piece; 32. Connecting plate; 33. Fixing ear plate; 4. Feeder assembly; 41. Feeder clamp; 42. Support plate; 43. Fixing bolt; 44. Nut; 5. Support column. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. The present utility model will be further described below with reference to specific embodiments. The accompanying drawings are only for illustrative purposes and represent only schematic diagrams, not actual pictures, and should not be construed as limiting the present patent. In order to better illustrate the embodiments of the present utility model, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0022] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, 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, the terms describing positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. Furthermore, if the embodiments of this utility model involve descriptions such as "first" and "second," these descriptions are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. In addition, the meaning of "and / or" in the text is that it includes three parallel options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B. Example

[0023] This implementation example Figure 1 and Figure 2 As shown, it includes a fixing component 1 fixedly installed with the support column 5, a feeder component 4 for fixing the feeder, and an insulating component 3 between the feeder component 4 and the fixing component, characterized in that a rotating component 2 is provided between the insulating component 3 and the fixing component 1.

[0024] The rotating component 2 includes an intermediate connector 23. The insulating component 3 is provided with a first connecting end that cooperates with the intermediate connector 23. The fixing component 1 is provided with a second connecting end that cooperates with the intermediate connector 23. The two ends of the intermediate connector 23 are respectively hinged to the first connecting end and the second connecting end through a first rotating shaft 24 arranged in the horizontal direction and a second rotating shaft 22 arranged in the vertical direction.

[0025] The fixing component 1 includes a first fixing angle steel 11 and a second fixing angle steel 14 that clamp the support column from the front and rear sides. The left and right sides of the column are provided with fixing bolts 13 and fixing nuts 12 for connecting and fixing the first fixing angle steel 11 and the second fixing angle steel 14. Tightening the fixing bolts 13 and fixing nuts 12 on both sides can clamp the first fixing angle steel 11 and the second fixing angle steel 14 to the outside of the support column 5.

[0026] The first fixed angle steel 11 and the second fixed angle steel 14, which are clamped relative to each other, are inverted, with one of their horizontal plates located above the vertical plate of the clamping column plate and the other located below the vertical plate of the clamping column.

[0027] The first fixed angle steel 11 and the second fixed angle steel 14 are also provided with adjusting nut columns 15 extending towards the column on the side wall near the column. The adjusting nut columns are staggered from the fixed bolts 13 in the vertical direction. Adjusting bolts 16 are screwed on each adjusting nut column. The end of the adjusting bolt 16 is opposite to the column 5. Rotating the adjusting bolt can press it onto the surface of the column 5 from the left and right sides.

[0028] The second fixed angle steel 14 is provided with a second connecting end that cooperates with the intermediate connecting piece 23.

[0029] The intermediate connector 23 is U-shaped. The middle part of the U-shape is fitted around the second rotating shaft 22 installed on the second connecting end, and the two ends of the U-shape are located on both sides of the fixed ear plate 33 on the first connecting end and are hinged and fixed by the first rotating shaft 24.

[0030] The bottom part of the intermediate connector 23, which is fitted outside the second rotating shaft 22, and contacts the second fixed angle steel 14, is designed as an arc surface.

[0031] The insulating component 3 includes a central insulating member 31 and two connecting plates 32 on both sides. The connecting plate on the side closer to the central connecting member is provided with a fixed ear plate 33 extending towards the central connecting member. The central connecting member 23 is hinged to the fixed ear plate 33 via a first rotating shaft 24.

[0032] The second fixed angle steel 14 has a top plate 21 extending towards the intermediate connector on the side near the intermediate connector 23. The hinged end of the intermediate connector 23 is located between the top plate 21 and the horizontal plate of the second fixed angle steel 14, and is simultaneously hinged between the top plate 21 and the horizontal plate of the second fixed angle steel 14 via the second pivot 22.

[0033] The second pivot 22 is a pin that is inserted from above the top plate through the horizontal plate of the intermediate connector 23 and the second fixed angle steel 14. A pin hole is provided at the end of the pivot that extends out of the horizontal plate, and a cotter pin for limiting is inserted into the pin hole.

[0034] A horizontally extending support plate 42 is provided on the connecting plate 32 on the outside of the insulating component 3, and the feeder clamp 41 is horizontally installed above the support plate 42.

[0035] The rotatable feeder shoulder frame provided by this utility model allows the feeder components and insulation components to adapt to the tension generated by the additional conductor due to changes in temperature, wind speed, and geological conditions, under the action of the rotating component. This mechanism effectively alleviates the unbalanced force caused by uneven span (span distance) and thermal expansion and contraction of the conductor, avoids long-term stress on the feeder clamp fixing point, and thus extends the service life of the feeder and feeder shoulder frame. It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the essence and scope of the technical solution of this utility model.

Claims

1. A rotatable feeder shoulder, comprising a fixing assembly (1) fixedly mounted to a support post (5), a feeder assembly (4) for fixing the feeder, and an insulating assembly (3) between the feeder assembly (4) and the fixing assembly, characterized in that, A rotating component (2) is provided between the insulating component (3) and the fixed component (1).

2. A rotatable feeder shoulder frame according to claim 1, characterized in that, The rotating component (2) includes an intermediate connector (23), and the insulating component (3) is provided with a first connecting end that cooperates with the intermediate connector (23). The fixing component (1) is provided with a second connecting end that cooperates with the intermediate connector (23). The two ends of the intermediate connector (23) are respectively hinged to the first connecting end and the second connecting end through a first rotating shaft (24) set in the horizontal direction and a second rotating shaft (22) set in the vertical direction.

3. A rotatable feeder shoulder as described in claim 1 or 2, characterized in that, The fixing component (1) includes a first fixing angle steel (11) and a second fixing angle steel (14) that clamp the support column from the front and rear sides. The left and right sides of the column are provided with fixing bolts (13) and fixing nuts (12) for connecting and fixing the first fixing angle steel (11) and the second fixing angle steel (14). Tightening the fixing bolts (13) and fixing nuts (12) on both sides can clamp the first fixing angle steel (11) and the second fixing angle steel (14) on the outside of the support column (5).

4. A rotatable feeder shoulder frame according to claim 3, characterized in that, The first fixed angle steel (11) and the second fixed angle steel (14) that are clamped relative to each other are inverted, with one of their horizontal plates located above the vertical plate of the clamping column plate and the other located below the vertical plate of the clamping column.

5. A rotatable feeder shoulder frame according to claim 3, characterized in that, The first fixed angle steel (11) and the second fixed angle steel (14) are also provided with adjusting nut columns (15) extending towards the column on the side wall near the column. The adjusting nut columns are offset from the fixed bolts (13) in the vertical direction. Adjusting bolts (16) are screwed on each adjusting nut column. The end of the adjusting bolt (16) is opposite to the column (5). Rotating the adjusting bolt can press it onto the surface of the column (5) from the left and right sides.

6. A rotatable feeder shoulder frame according to claim 3, characterized in that, The second fixed angle steel (14) is provided with a second connecting end that cooperates with the intermediate connecting piece (23).

7. A rotatable feeder shoulder frame according to claim 6, characterized in that, The intermediate connector (23) is U-shaped. The middle part of the U-shape is fitted around the second rotating shaft (22) installed on the second connecting end, and the two ends of the U-shape are located on the first connecting end and are hinged to the fixed ear plate (33) through the first rotating shaft (24).

8. A rotatable feeder shoulder frame according to claim 7, characterized in that, The part of the intermediate connector (23) that is fitted outside the second rotating shaft (22) and contacts the second fixed angle steel (14) is set as an arc surface.

9. A rotatable feeder shoulder frame according to claim 6, characterized in that, The insulating component (3) includes a middle insulating member (31) and two connecting plates (32) on both sides. The connecting plate on the side closer to the middle connecting member is provided with a fixed ear plate (33) extending towards the middle connecting member. The middle connecting member (23) is hinged to the fixed ear plate (33) through a first rotating shaft (24).

10. A rotatable feeder shoulder frame according to claim 6, characterized in that, The second fixed angle steel (14) has a top plate (21) extending toward the intermediate connector on the side near the intermediate connector (23). The hinge end of the intermediate connector (23) is located between the top plate (21) and the horizontal plate of the second fixed angle steel (14), and is simultaneously hinged between the top plate (21) and the horizontal plate of the second fixed angle steel (14) via the second pivot (22).

11. A rotatable feeder shoulder frame according to claim 10, characterized in that, The second pivot (22) is a pin that is inserted from above the top plate through the intermediate connector (23) and the second fixed angle steel (14) into a horizontal plate. A pin hole is provided at the end of the pivot that extends out of the horizontal plate, and a cotter pin for limiting is inserted into the pin hole.

12. A rotatable feeder shoulder frame according to claim 1, characterized in that, A horizontally extending tray (42) is provided on the connecting plate (32) on the outside of the insulating component (3), and the feeder clamp (41) is horizontally installed above the tray (42).

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