Mobile contact network contact line setting structure

Abstract

The present invention relates to a contact line setting structure for a mobile contact network, which is applied to a mobile contact network arm structure, and includes a load-bearing cable, a contact line and a suspension member. The load-bearing cable is arranged on a rotating mechanism in the arm structure; the contact line is suspended in the air, and the contact line and the arm structure are in a separated state; the suspension member is used to suspend the contact line. One end of the suspension member is arranged on the load-bearing cable, and the other end of the suspension member is connected to the contact line. An anti-swing structure is also included to prevent the contact line from swinging. The setting structure provided by the present invention reduces the sudden change of the contact force of the pantograph and greatly reduces the impact hard points. The present invention also provides an anti-swing structure to effectively overcome the problem of contact line swinging.

Description

Technical Field

[0001] The invention belongs to the field of electrified railway mobile contact network, and in particular relates to a contact line setting structure of the mobile contact network. Background Art

[0002] In the existing mobile contact network, the contact wire is directly set on the arm. One way is to set the contact wire and the load-bearing wire separately on the arm. Another way is to use a common rotating support shaft, with the load-bearing wire set at the upper end and the contact wire set at the lower end. However, no matter which form is adopted, the contact wire is directly or indirectly set on the arm and is fixed. A positioning wire clamp is needed to clamp the contact wire. Sometimes, the positioning wire clamp (contact wire clamping structure) is also provided with a slideway and other structures.

[0003] Contact network hard points are caused by the poor elasticity of certain parts of the contact suspension or contact line, such as the positioning points at both ends of the span, or the presence of additional weight. When the electric locomotive is in operation and the locomotive pantograph passes through at high speed, these parts will rise (or fall) abnormally, or even collide with or hit the pantograph. The intrinsic state of this phenomenon is called a hard point. Contact network hard points are a threatening physical phenomenon that will destroy the normal contact and current collection between the pantograph and the catenary, accelerate abnormal wear and impact damage to the conductor and the pantograph slide, and often cause sparks or arcing at these locations, thereby damaging the contact line and the pantograph. The occurrence of contact line hard points will also affect the normal current collection of the traction motor, causing serious damage to the traction motor during the transient process of arcing, and at the same time, it will affect the traction quality of the locomotive.

[0004] There are two types of damage to the contact network and pantograph caused by hard points. One is mechanical damage, and the other is arc damage. Mechanical damage refers to minor bumps and scratches on the pantograph and contact wire (those with obvious marks are called bow points). Usually, we say that hard points damage the bow (net). It is mainly caused by hard points causing the bow network to go offline and the high-temperature arc generated at the moment of offline. It is very harmful to the contact network and pantograph. The damage to the pantograph is mainly manifested in pitting and vaporization of the bow head. In addition to pitting and vaporization of the contact wire, the damage to the contact wire is the high-temperature annealing of the wire.

[0005] Contact hard points are one of the important reasons for locomotive pantograph offline. Locomotive pantograph offline is harmful to locomotive traction motor, electrical appliances, pantograph, contact network, traction transformer and power supply system.

[0006] The main causes of contact network hard points are:

[0007] 1. Design reasons: Due to the special positioners used in the joints of the insulating anchor sections and the phase-splitting insulating radium sections, the weight of the positioners is heavy and concentrated, which causes the elasticity of the positioning parts to be reduced; the weight of the component-type phase-splitting and segmented joints, the electrical connection clamps, the disconnectors, lightning arresters and the electrical connections to the Internet are heavy and concentrated, which causes a sudden change in the contact force of the pantograph, resulting in a large impact hard point.

[0008] 2. Material reasons: The alloy contact wire has uneven grains, there is stress inside the wire, and wave bends are formed under the action of tension. Hard spots are formed in the contact wire during the manufacturing or winding process.

[0009] 3. Construction reasons: During the laying-out process, the contact wires were not laid out with constant tension and were not laid out in accordance with the construction process, resulting in hard points; during the installation and adjustment of the contact network, personnel stepped on the contact wires and the lifting platform of the work vehicle directly lifted the contact wires, resulting in hard points.

[0010] 4. Power supply reasons: The contact network positioning clamp, suspension string clamp, electrical connection clamp, joint clamp, and center anchor clamp are skewed; in places where the positioning slope is too large (too small), the gap between the locator pins is not standard and the elasticity is poor (cannot be lifted normally); the local conductor slope changes greatly (the height of the contact wire in places such as overpasses and tunnel entrances changes dramatically, causing the contact line slope to be larger), the height difference between the positioning points and the suspension string points exceeds the standard, the suspension strings are unevenly stressed or one of the suspension strings is subjected to greater stress, forming a hard point. Summary of the invention

[0011] In view of this, the present invention provides a new contact line setting structure for a mobile contact network which can effectively reduce hard points.

[0012] To achieve the above object, the technical solution adopted by the present invention is: a mobile contact network contact line setting structure, characterized in that: it is applied to the mobile contact network arm structure, including a load-bearing cable, a contact line and a suspension member, wherein

[0013] The load-bearing cable is arranged on a rotating mechanism in the cantilever structure;

[0014] The contact line is suspended in the air, and the contact line and the arm structure are in a separated state;

[0015] The suspension member is used for suspending the contact wire.

[0016] Furthermore, the suspension is arranged on one side or both sides of the arm structure.

[0017] Furthermore, one end of the suspension member is arranged on the load-bearing cable, and the other end of the suspension member is connected to the contact wire.

[0018] Further, one end of the suspension member is arranged on the arm structure, and the other end of the suspension member is connected to the contact line; or

[0019] One end of the suspension member is arranged on the rotating mechanism, and the other end of the suspension member is connected to the contact line.

[0020] Furthermore, it also includes an anti-swing structure, which is used to prevent the contact line from swinging.

[0021] Furthermore, the anti-swing structure includes a connecting piece, and the connecting piece is connected to the suspension piece; the connecting piece has a connecting part, and the connecting part is arranged in the following ways:

[0022] The first type: the connection is arranged on a rotating support in the rotating mechanism;

[0023] The second type: the connection is arranged on the wrist-arm structure; or

[0024] The third type: the connection point is arranged on the extension piece of the wrist-arm structure.

[0025] Furthermore, when the second or third method is adopted, a rotating member is provided on the wrist-arm structure or on an extension member of the wrist-arm structure, and the connection point is provided on the rotating member.

[0026] Furthermore, the suspension member is made of hard material or rigid material or flexible material or flexible material.

[0027] Furthermore, it also includes a kit, the suspension component is inserted into the kit, and the connecting component is connected to the kit.

[0028] Furthermore, the kit can move on the suspension member, and a gap is left between the upper end of the kit and the load-bearing cable.

[0029] Furthermore, a groove is provided on the set, the connecting piece is arranged in the groove, and the set can move on the connecting piece through the groove.

[0030] The present invention has the following beneficial effects:

[0031] 1. The existing mobile contact network needs to use a clamping mechanism to fix the contact wire. The present invention abandons the traditional connection method, has no contact wire clamping mechanism, and has no sliding structure. It overcomes the original uneven force situation, greatly reduces the weight, reduces the sudden change of the contact force of the pantograph, and greatly reduces the impact hard points.

[0032] 2. The present invention also provides an anti-swing structure, which effectively overcomes the problem of contact line swing. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is Embodiment 1 of the contact line setting structure of the mobile contact network of the present invention;

[0035] Figure 2 This is Embodiment 2 of the contact line setting structure of the mobile contact network of the present invention;

[0036] Figure 2A yes Figure 2 A schematic diagram of an extended implementation structure;

[0037] Figure 3 This is Embodiment 3 of the contact line setting structure of the mobile contact network of the present invention;

[0038] Figure 4 This is Embodiment 4 of the contact line setting structure of the mobile contact network of the present invention;

[0039] Figure 5 This is Embodiment 5 of the contact line setting structure of the mobile contact network of the present invention;

[0040] Figure 5A yes Figure 5 One of the schematic diagrams of an extended implementation structure;

[0041] Figure 5B yes Figure 5 A second schematic diagram of an extended implementation structure;

[0042] Figure 6 This is Embodiment 6 of the contact line setting structure of the mobile contact network of the present invention;

[0043] In the figure, 1, arm structure; 2, load-bearing cable; 3, contact line; 4, suspension part; 5, connecting part; 6, extension part; 7, rotating part; 8, kit; 9, gap; 10, groove; 11, rotating mechanism; 12, clamping mechanism; 13; rotating support part; A, connection. DETAILED DESCRIPTION

[0044] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices consistent with some aspects of the present invention as detailed in the appended claims.

[0045] This embodiment provides a contact line setting structure for a mobile contact network, which is applied to a mobile contact network arm structure, and includes a load-bearing cable 2, a contact line 3 and a suspension member 4, wherein

[0046] The load-bearing cable 2 is arranged on the rotating mechanism 11 in the arm structure 1; the load-bearing cable can be clamped by a clamping mechanism, and the contact line 3 is suspended in the air, and the contact line 3 is in a separated state from the arm structure 1; the suspension member 4 is used to suspend the contact line 3.

[0047] In this embodiment, the suspension is arranged on one side or both sides of the arm structure 1 .

[0048] like Figure 1 As shown, as a preferred embodiment, one end of the suspension member 4 is arranged on the load-bearing cable 2, and the other end of the suspension member 4 is connected to the contact line 3. Figure 1 A schematic diagram showing the arrangement of a suspension member 4 is shown. Figure 2 The schematic diagram of two suspension members 4 is shown. The present invention does not limit the number of suspension members 4. Figure 1 and Figure 2 It is just for illustrative purposes.

[0049] You can refer to Figure 2 In the present invention, since the contact line 3 is suspended, in order to prevent the contact line 3 from swinging, as a preferred implementation, this embodiment also includes an anti-swing structure, which is used to prevent the contact line 3 from swinging.

[0050] The anti-swing structure includes a connecting member 5, and the connecting member 5 is connected to the suspension member 4; Figure 2A As shown, the load-bearing cables on both sides of the rotating mechanism 11 are provided with suspension members 4. The schematic diagram of the connection members 5 being connected to the suspension members 4.

[0051] The connecting member 5 has a connecting portion, and the connecting portion can be arranged in the following ways: Figure 2 As shown, the first type: the connection point A is arranged on the rotating support in the rotating mechanism;

[0052] like Figure 3 As shown, the second type: the connection point A is set on the arm structure 1; or

[0053] like Figure 4 As shown, the third type: the connection point A is arranged on the extension piece 6 of the arm structure 1.

[0054] like Figure 3 and Figure 4As shown, when the second or third method is adopted, a rotating member 7 is provided on the arm-wrist structure 1 or on the extension member 6 of the arm-wrist structure 1 , and the connection point is provided on the rotating member 7 .

[0055] The suspension member 4 described in this embodiment is made of hard material or rigid material or flexible material.

[0056] like Figure 5 As shown, in this embodiment, one end of the suspension member 4 is arranged on the arm structure 1, and the other end of the suspension member 4 is connected to the contact line 3; or

[0057] like Figure 5A As shown, one end of the suspension member 4 is arranged on the rotating mechanism, and the other end of the suspension member 4 is connected to the contact line 3. In this embodiment, the sleeve 8 may be added or not;

[0058] If Kit 8 is added, an anti-sway structure is required, such as Figure 5B shown.

[0059] When the suspension member 4 is flexible, a reinforcement member may be provided, which is attached to the suspension, for example, by being tied together with twisted wires, mainly to prevent the flexible suspension member 4 from swinging.

[0060] like Figure 6 As shown, as a preferred embodiment, this embodiment also includes a set 8, the suspension member 4 is inserted into the set 8, and the connecting member 5 is connected to the set 8. The set 8 can move on the suspension member 4, and a gap 9 is left between the upper end of the set 8 and the load-bearing cable 2. The reason for leaving the gap 9 is that when the pantograph passes, it will exert an upward lifting force, and the width of the gap 9 is equivalent to the height of the contact line 3 being lifted.

[0061] As a preferred embodiment, in this embodiment, a slot 10 is provided on the sleeve 8, and the connecting member 5 is arranged in the slot 10, so that the sleeve 8 can move on the connecting member 5 through the slot 10. In this way, when the pantograph passes, the lifted sleeve 8 moves upward through the slot 10, and after the pantograph passes, the sleeve 8 returns to its original position.

[0062] The present invention provides a connecting member 5, which, on the one hand, enhances stability and prevents the contact line 3 from swinging; on the other hand, the arm structure 1 in the mobile contact line 3 needs to swing to one side of the railway (non-working position) or swing to the top of the railway (working position). By providing a connection on the connecting member 5, the connection is provided on the rotating support or the rotating member 7 of the arm structure 1 or the rotating member 7 of the extension member 6, so that when the arm structure 1 rotates, the load-bearing cable 2 and / or the contact line 3 can achieve horizontal lateral displacement.

[0063] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A contact line setting structure for a mobile contact network, characterized in that: Applied to the mobile contact network arm structure, including load-bearing cables, contact wires and suspension parts. The load-bearing cable is arranged on the rotating mechanism in the arm structure; the load-bearing cable is clamped by the clamping mechanism; The contact line is suspended in the air, and the contact line and the arm structure are in a separated state; The suspension member is used for suspending the contact wire.

2. The contact line setting structure of the mobile contact network according to claim 1 is characterized in that: The suspension member is arranged on one side or both sides of the arm structure.

3. The contact line setting structure of the mobile contact network according to claim 2 is characterized in that: One end of the suspension member is arranged on the load-bearing cable, and the other end of the suspension member is connected to the contact wire.

4. The contact line setting structure of the mobile contact network according to claim 1 is characterized in that: One end of the suspension member is arranged on the arm structure, and the other end of the suspension member is connected to the contact line; or One end of the suspension member is arranged on the rotating mechanism, and the other end of the suspension member is connected to the contact line.

5. The contact line arrangement structure for a mobile contact network according to any one of claims 1 to 4, characterized in that: Also included is an anti-swing structure, which is used to prevent the contact line from swinging.

6. The contact line setting structure of the mobile contact network according to claim 5, characterized in that: The anti-swing structure includes a connecting piece, and the connecting piece is connected to the suspension piece; the connecting piece has a connecting part, and the connection part is arranged in the following ways: The first type: the connection is arranged on a rotating support in the rotating mechanism; The second type: the connection is provided on the wrist-arm structure; or The third type: the connection point is arranged on the extension piece of the wrist-arm structure.

7. The contact line setting structure of the mobile contact network according to claim 6, characterized in that: When the second or third method is adopted, a rotating member is provided on the wrist-arm structure or on the extension member of the wrist-arm structure, and the connection point is provided on the rotating member.

8. The contact line arrangement structure for a mobile contact network according to any one of claims 1 to 7, characterized in that: The suspension member is made of hard material or flexible material.

9. The contact line setting structure of the mobile contact network according to claim 6 or 7, characterized in that: It also includes a kit, the suspension component is inserted into the kit, and the connecting component is connected to the kit.

10. The contact line setting structure of the mobile contact network according to claim 9, characterized in that: The set can move on the suspension member, and a gap is left between the upper end of the set and the load-bearing cable.

11. The contact line setting structure of the mobile contact network according to claim 9, characterized in that: The sleeve is provided with a slot, the connecting piece is arranged in the slot, and the sleeve can move on the connecting piece through the slot.

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