A positive positioning double-ear type catenary cantilever structure

Abstract

The application discloses a positive positioning type double-ear type catenary arm structure, which comprises a horizontal arm and an inclined arm connected with an arm support, the end of the inclined arm is connected with the horizontal arm through an arm connector, the first connecting seat in the middle of the inclined arm is connected with the second connecting seat of the horizontal arm through the arm support, the lower side of the first connecting seat is provided with a positioning pipe, the upper side of the positioning support on the outer side of the positioning pipe is connected with the lower side of the arm connector through the positioning pipe support, the lower side of the positioning support is provided with a positioner, the end of the positioner and the third connecting seat in the middle of the positioning pipe are provided with a windproof line; the first connecting seat comprises a third fixing part and a fourth fixing part connected with each other, and the inner side of the third fixing part is provided with a first clamping groove connected with the fourth fixing part. The positive positioning type double-ear type catenary arm structure is adopted, the whole structure is quickly installed, the stability of the structure is improved, and high-frequency vibration is effectively buffered.

Description

Technical Field

[0001] This invention relates to the field of overhead contact line technology, and in particular to a positively positioned double-ear type overhead contact line cantilever structure. Background Technology

[0002] In electrified railways, the safe and efficient operation of high-speed railways is of paramount importance to the development of the entire railway network, and the overhead contact system is the most prone to problems. As a crucial component of the electrified railway power supply system, the performance and condition of the overhead contact system directly affect the safety and reliability of train operation. The overhead contact system is a special power supply line in the railway system, erected above the railway line, and mainly consists of contact suspension, support devices, positioning devices, cantilever supports, and auxiliary components.

[0003] The contact suspension system includes connecting components such as the contact wire, droppers, and catenary wire; the support device includes the cantilever structure, insulators, and other essential connecting parts, primarily used to support the contact suspension; the positioning device includes positioning tubes, positioners, positioner clamps, and connecting parts, used to fix the position of the contact wire to ensure that it remains within the pantograph's sliding track during train operation, preventing detachment between the contact wire and the pantograph. Positioning by pulling the contact wire towards the support post using positioning tubes and positioners is called positive positioning, while positioning away from the support post is called reverse positioning. In existing technologies, the cantilever structure is complex, and while ensuring load-bearing strength, rapid installation is not possible. Summary of the Invention

[0004] The purpose of this invention is to provide a positive positioning double-ear type contact wire cantilever structure, which enables rapid installation of the overall structure and improves the stability of the structure, effectively buffering high-frequency vibrations.

[0005] To achieve the above objectives, the present invention provides a positive positioning double-ear type contact wire cantilever structure, including a flat cantilever and an oblique cantilever connected to a cantilever support column. The end of the oblique cantilever is connected to the flat cantilever via a cantilever connector. A first connecting seat in the middle is connected to a second connecting seat on the flat cantilever via a cantilever support. A positioning tube is provided below the first connecting seat. The positioning support on the outside of the positioning tube is connected to the lower part of the cantilever connector via a positioning tube support. A positioner is provided below the positioner. A windproof line is provided between the end of the positioner and the third connecting seat in the middle of the positioning tube.

[0006] The first connecting seat includes a third fixing member and a fourth fixing member connected to opposite sides. The inner side of the third fixing member is provided with a first slot for connecting to the fourth fixing member. The upper part of the second connecting portion of the third fixing member and the fourth fixing member is provided with a second lug for connecting to the wrist arm support. The upper and lower sides of the second connecting portion are provided with a second fixing hole. The lower part of the third fixing member is provided with a third lug for connecting to the front end converter of the positioning tube.

[0007] Preferably, the inner side above the third fixing member is provided with an arc-shaped locking protrusion corresponding to the second connecting part on the fourth fixing member.

[0008] Preferably, the second connecting seat and the third connecting seat have the same structure, both including a first fixing member and a second fixing member arranged on opposite sides, the first fixing member and the second fixing member having a first fixing hole on the upper and lower sides of the arc-shaped first connecting part, and a first lifting lug on the lower part of the first fixing member and the second fixing member.

[0009] Preferably, the positioning support includes a fifth fixing member and a sixth fixing member connected to opposite sides. The upper and lower sides of the third connecting part of the fifth fixing member and the sixth fixing member are provided with third fixing holes. The upper part of the third connecting part is provided with a fourth lifting lug that is supported and connected to the positioning tube.

[0010] Preferably, the lower end of the outwardly extending leg of the third connecting part is provided with a vertically downward fifth lug, the size of the leg gradually decreases from top to bottom, the legs are staggered, and the fifth lug is connected to the positioner through a converter.

[0011] Preferably, the wrist arm connector includes a seventh fixing member and an eighth fixing member connected to opposite sides. The seventh fixing member has a second slot corresponding to the eighth fixing member below it. The arc-shaped fourth connecting part of the seventh fixing member and the eighth fixing member has a fourth fixing hole on the upper and lower sides. The seventh fixing member is connected to the load-bearing cable seat above it through an extension column. The extension column has an elongated through hole on its inner side. The through hole has a bolt that passes through the pressure block above the load-bearing cable seat. The pressure block has a protrusion corresponding to the grooves on both sides of the load-bearing cable seat below it.

[0012] Below the fourth connecting part is a sixth lifting lug that is supported and connected to the inclined arm and the positioning tube respectively. The sixth lifting lug has a symmetrical structure and an arc-shaped groove in its middle.

[0013] Preferably, the oblique wrist arm, the positioning tube support, and the positioning tube form an obtuse triangle, while the flat wrist arm, the wrist arm support, and the oblique wrist arm form a right triangle.

[0014] Preferably, the converter includes two vertical ears on one side and one horizontal ear on the other side. The two ears are vertically arranged on both sides of the single ear, and one end of the positioning tube is provided with a compound ear structure connected to the upper and lower sides of the single ear.

[0015] Preferably, the middle part of the locator has an upward convex structure, and a seventh lug for fixing the windproof line is provided above the end of the locator.

[0016] Preferably, a reinforcing layer is provided on the outer side of the first fixing hole, the second fixing hole, the third fixing hole, and the fourth fixing hole, and a reinforcing rib is provided on the outer side of the first connecting part, the second connecting part, the third connecting part, and the fourth connecting part.

[0017] Therefore, the present invention adopts the above-mentioned positive positioning double-ear type contact wire cantilever structure to achieve rapid installation of the overall structure, and improves the stability of the structure and effectively buffers high-frequency vibration.

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an embodiment of a positive positioning double-ear type contact wire cantilever structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the second and third connecting seats in a positive positioning double-ear type contact wire cantilever structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the first connecting seat in a positive positioning double-ear type contact wire cantilever structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the positioning support in a positive positioning double-ear type contact wire cantilever structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the wrist arm connector in a positive positioning double-ear type contact wire wrist arm structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the positioner in a positive positioning double-ear type contact wire cantilever structure of the present invention;

[0025] Figure 7 This is a schematic diagram of a second embodiment of the wrist arm connector in a positive positioning double-ear type contact wire wrist arm structure of the present invention.

[0026] Figure Labels

[0027] 1. Wrist arm support; 2. Flat wrist arm; 3. Inclined wrist arm; 4. Wrist arm support; 5. Positioning tube; 6. Positioning tube support; 7. Positioner; 71. Seventh lifting lug; 8. Converter; 9. Reinforcing rib; 10. Reinforcing layer;

[0028] 11. Second connecting seat; 111. Third connecting seat; 112. First fixing member; 113. Second fixing member; 114. First connecting part; 115. First fixing hole; 116. First lifting lug;

[0029] 12. First connecting seat; 121. Third fixing member; 122. Fourth fixing member; 123. First slot; 124. Second lifting lug; 125. Second connecting part; 126. Locking protrusion; 127. Second fixing hole; 128. Third lifting lug;

[0030] 13. Positioning support; 131. Fifth fixing component; 132. Sixth fixing component; 133. Third connecting part; 134. Third fixing hole; 135. Fourth lifting lug; 136. Support leg; 137. Fifth lifting lug;

[0031] 14. Wrist arm connector; 141. Seventh fixing component; 142. Eighth fixing component; 143. Second slot; 144. Fourth connecting part; 145. Fourth fixing hole; 146. Heightening post; 147. Through hole; 148. Sixth lifting lug;

[0032] 15. Cable support; 151. Pressure block; 152. Protrusion. Detailed Implementation

[0033] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] As shown in the figure, a positive positioning double-ear type contact wire cantilever structure includes a flat cantilever 2 and an oblique cantilever 3 connected to a cantilever support 1. The cantilever support 1 provides support for the flat cantilever 2 and the oblique cantilever 3. The end of the oblique cantilever 3 is connected to the flat cantilever 2 via a cantilever connector 14, which fixes one end of the oblique cantilever 3. The first connecting seat 12 in the middle of the oblique cantilever 3 is connected to the second connecting seat 11 of the flat cantilever 2 via a cantilever support 4, which connects the oblique cantilever 3 to the flat cantilever 2. A positioning tube 5 is provided below the first connecting seat 12 to fix the position of one end of the positioning tube 5. The positioning support 13 on the outside of the positioning tube 5 is connected to the lower part of the cantilever connector 14 via a positioning tube support 6, which ensures the stable connection of the positioning tube 5. A positioner 7 is provided below the positioning support 13 to fix the position of the positioner 7. A windproof line is provided between the end of the positioner 7 and the third connecting seat 111 in the middle of the positioning tube 5, which further secures the positioner 7.

[0036] The oblique wrist arm 3, the positioning tube support 6, and the positioning tube 5 form an obtuse triangle, and this structure ensures a stable connection. The flat wrist arm 2, the wrist arm support 4, and the oblique wrist arm 3 form a right triangle, and the wrist arm support 4 ensures the stability of the position of the flat wrist arm 2 and the oblique wrist arm 3.

[0037] The first connecting seat 12 includes a third fixing member 121 and a fourth fixing member 122 connected to opposite sides. The inner side of the third fixing member 121 is provided with a first slot 123 for connecting with the fourth fixing member 122, so that the first connecting seat 12 is stably connected through the third fixing member 121 and the fourth fixing member 122. The upper and lower sides of the second connecting part 125 are provided with second fixing holes 127, so that fastening is achieved through the second fixing holes 127. The second connecting parts 125 of the third fixing member 121 and the fourth fixing member 122 are each provided with a second lug 126 for connecting with the wrist arm support 4, so that the wrist arm support 4 is connected through the second lug 126. The lower part of the third fixing member 121 is provided with a third lug 128 for connecting with the front end converter 8 of the positioning tube 5, so that the converter 8 is connected, thereby realizing the connection of the positioning tube 5.

[0038] An arc-shaped latching protrusion 129 corresponding to the second connecting portion 125 on the fourth fixing member 122 is provided on the inner side above the third fixing member 121. The latching protrusion 129 enables a tight connection between the third fixing member 121 and the fourth fixing member 122. The third lug 128 above the latching protrusion 129 provides space for the connection of the wrist arm support 4.

[0039] The second connecting seat 11 and the third connecting seat 111 have the same structure, both including a first fixing member 112 and a second fixing member 113 arranged on opposite sides. The arc-shaped first connecting portion 114 of the first fixing member 112 and the second fixing member 113 is provided with first fixing holes 115 on the upper and lower sides, through which the first fixing member 112 and the second fixing member 113 are connected. A first lifting lug 116 is provided below the first fixing member 112 and the second fixing member 113, through which the wrist arm support 4 or the positioner 7 is connected.

[0040] The positioning support 13 includes a fifth fixing member 131 and a sixth fixing member 132 connected to opposite sides. The upper and lower sides of the third connecting portion 133 of the fifth fixing member 131 and the sixth fixing member 132 are provided with third fixing holes 134, which enable a stable connection between the fifth fixing member 131 and the sixth fixing member 132. Above the third connecting portion 133 is a fourth lifting lug 135 that connects to the positioning tube support 6, enabling the connection of the positioning tube support 6.

[0041] The outwardly extending leg 136 of the third connecting part 133 has a vertically downward-pointing fifth lifting lug 137 at its end. The fifth lifting lug 137 is connected to the positioner 7 via the converter 8, thus connecting the positioner 7. The outriggers 136 gradually decrease in size from top to bottom and are staggered, improving overall elasticity and thus releasing high-frequency vibrations. The positioner 7 has an upward-protruding structure in the middle, which improves its load-bearing strength and prevents damage from high-frequency vibrations from high-speed trains. A seventh lifting lug 71 is located above the end of the positioner 7 for fixing the windproof wire, thus ensuring the position of the positioner 7 is fixed.

[0042] The converter 8 includes two vertical ears on one side and one horizontal ear on the other side. The two ears are vertically positioned on both sides of the single ear. One end of the positioning tube 5 has a compound ear structure that connects to the upper and lower sides of the single ear. The converter 8 enables a change in the connection direction and also changes the direction of force transmission. Through the converter 8, the force is partially released, reducing the force on the upper connector.

[0043] The wrist arm connector 14 includes a seventh fixing member 141 and an eighth fixing member 142 connected on opposite sides. The seventh fixing member 141 has a second slot 143 corresponding to the eighth fixing member 142 below it, achieving a complete connection between the seventh fixing member 141 and the eighth fixing member 142 through the second slot 143, ensuring consistent load-bearing strength. The arc-shaped fourth connecting portion 144 of the seventh fixing member 141 and the eighth fixing member 142 has fourth fixing holes 145 on its upper and lower sides, achieving a stable connection through the fourth fixing holes 145. The seventh fixing member 141 is connected to the load-bearing cable seat 15 above it via a heightening post 146, which increases the support height and allows for adjustment of the load-bearing cable height. The inner side of the heightening post 146 has an elongated through hole 147, reducing the weight of the heightening post and ensuring stable support for the seventh fixing member 141. A bolt passing through the pressure block 151 above the load-bearing cable seat 15 is installed in the through hole 147; the bolt's position facilitates the stability of the overall structure. The pressure block 151 is provided with protrusions 152 corresponding to the grooves on both sides of the load-bearing cable seat 15. The pressure block is stably connected by the protrusions 152 being inserted into the load-bearing cable seat.

[0044] In addition, the wrist arm connector can also provide Figure 7 The structure shown is identical except for the heightening column.

[0045] Below the fourth connecting part 144, there is a sixth lifting lug 148 that is connected to the inclined arm 3 and the positioning tube support 6 respectively. The connection between the inclined arm 3 and the positioning tube support 6 is achieved through the sixth lifting lug 148. The sixth lifting lug 148 has a symmetrical structure and an arc-shaped groove in its middle. The structure of the sixth lifting lug 148 is designed to provide rotation space for the connection between the inclined arm 3 and the positioning tube support 6.

[0046] The outer sides of the first fixing hole 115, the second fixing hole 127, the third fixing hole 134, and the fourth fixing hole 145 are provided with a reinforcing layer to improve their load-bearing strength. The outer sides of the first connecting part 114, the second connecting part 125, the third connecting part 133, and the fourth connecting part 144 are provided with reinforcing ribs 9, which improve the load-bearing strength of each connecting part.

[0047] When in contact with a high-speed train, the cantilever structure is subjected to severe vibration, and the positioner needs to pull the wire inward. This invention eliminates the complex clamp connectors of existing technologies. By setting a simple connection structure, it ensures load-bearing strength while releasing vibrations in unpredictable directions, reducing the force on the horizontal and inclined cantilever arms, and ensuring the positional stability of the positioner, preventing significant positional deviations due to train vibrations and thus avoiding derailment accidents.

[0048] Therefore, the present invention adopts the above-mentioned positive positioning double-ear type contact wire cantilever structure to achieve rapid installation of the overall structure, and improves the stability of the structure and effectively buffers high-frequency vibration.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A positive positioning type double-ear type contact wire cantilever structure, characterized in that: It includes a flat wrist arm and an inclined wrist arm connected to a wrist arm support. The end of the inclined wrist arm is connected to the flat wrist arm via a wrist arm connector. The first connecting seat in the middle is connected to the second connecting seat of the flat wrist arm via a wrist arm support. A positioning tube is provided below the first connecting seat. The positioning support on the outside of the positioning tube is connected to the lower part of the wrist arm connector via the positioning tube support. A locator is provided below it. A windproof line is provided between the end of the locator and the third connecting seat in the middle of the positioning tube. The first connecting seat includes a third fixing member and a fourth fixing member connected to opposite sides. The inner side of the third fixing member is provided with a first slot for connecting to the fourth fixing member. The upper part of the second connecting portion of the third fixing member and the fourth fixing member is provided with a second lug for connecting to the wrist arm support. The inner side of the upper part of the third fixing member is provided with an arc-shaped protrusion corresponding to the second connecting portion on the fourth fixing member. The upper and lower sides of the second connecting portion are provided with second fixing holes. The lower part of the third fixing member is provided with a third lug for connecting to the front end converter of the positioning tube. The second connecting seat and the third connecting seat have the same structure, both including a first fixing member and a second fixing member arranged to opposite sides. The upper and lower sides of the arc-shaped first connecting portion of the first fixing member and the second fixing member are provided with first fixing holes. The lower part of the first fixing member and the second fixing member is provided with a first lug.

2. The positive positioning type double-ear type contact wire cantilever structure according to claim 1, characterized in that: The positioning support includes a fifth fixing member and a sixth fixing member connected to opposite sides. The upper and lower sides of the third connecting part of the fifth fixing member and the sixth fixing member are provided with third fixing holes. The upper part of the third connecting part is provided with a fourth lifting lug that is supported and connected to the positioning tube.

3. The positive positioning type double-ear type contact wire cantilever structure according to claim 2, characterized in that: The third connecting part has a fifth hanging lug extending outward from the bottom of the leg. The size of the leg gradually decreases from top to bottom. The legs are staggered. The fifth hanging lug is connected to the positioner through a converter.

4. The positive positioning type double-ear type contact wire cantilever structure according to claim 3, characterized in that: The wrist arm connector includes a seventh fixing member and an eighth fixing member connected to opposite sides. The seventh fixing member has a second slot corresponding to the eighth fixing member below it. The arc-shaped fourth connecting part of the seventh fixing member and the eighth fixing member has a fourth fixing hole on the upper and lower sides. The seventh fixing member is connected to the load-bearing cable seat above it through an extension column. The extension column has an elongated through hole on its inner side. The through hole has a bolt that passes through the pressure block above the load-bearing cable seat. The pressure block has a protrusion corresponding to the slots on both sides of the load-bearing cable seat below it. Below the fourth connecting part is a sixth lifting lug that is supported and connected to the inclined arm and the positioning tube respectively. The sixth lifting lug has a symmetrical structure and an arc-shaped groove in its middle.

5. A positive positioning type double-ear type contact wire cantilever structure according to claim 4, characterized in that: The oblique wrist arm, the positioning tube support, and the positioning tube form an obtuse triangle, while the flat wrist arm, the wrist arm support, and the oblique wrist arm form a right triangle.

6. The positive positioning type double-ear type contact wire cantilever structure according to claim 5, characterized in that: The converter includes two vertical ears on one side and one horizontal ear on the other side. The two ears are vertically arranged on both sides of the single ear. One end of the positioning tube is provided with a compound ear structure that connects to the upper and lower sides of the single ear.

7. A positive positioning type double-ear type contact wire cantilever structure according to claim 6, characterized in that: The locator has an upward-convex structure in the middle, and a seventh lug for fixing the windproof line is provided above the end of the locator.

8. The positive positioning type double-ear type contact wire cantilever structure according to claim 7, characterized in that: The first fixing hole, the second fixing hole, the third fixing hole, and the fourth fixing hole are provided with a reinforcing layer on their outer sides, and the first connecting part, the second connecting part, the third connecting part, and the fourth connecting part are provided with reinforcing ribs on their outer sides.

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