Anchor section joint electric connection device installed on cantilever positioning device

Abstract

The invention provides an anchor section joint electric connection device installed on a cantilever positioning device. The anchor section joint electric connection device comprises a working branch contact wire electric connection wire clamp, a thin electric connection wire, a wire clamp fixing clamp, an electric connection wire clamp, a carrier cable electric connection wire clamp, a thick electric connection wire and a non-working branch contact wire electric connection wire clamp. Wherein the working branch contact wire electric connecting wire clamps are symmetrically arranged on the two sides of the working branch positioning pipe and fixedly connected with the working branch contact wire, the wire clamp fixing clamp is fixedly installed on the working branch positioning pipe, and the electric connecting wire clamps are installed on the wire clamp fixing clamp; the two ends of the thin electric connecting wire are respectively connected with one working branch contact wire electric connecting wire clamp, and the middle point of the thin electric connecting wire is connected with the electric connecting wire clamp; one end of the thick electric connecting wire is connected with the electric connecting wire clamp, and the other end of the thick electric connecting wire is connected with the non-working branch contact wire through the non-working branch contact wire electric connecting wire clamp; and the thick electric connecting wire is upwards connected with the working supporting force cable and the non-working supporting force cable through the plurality of force bearing cable electric connecting wire clamps from the electric connecting wire clamp.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transportation, and in particular to an anchor segment joint electrical connection device installed on a wrist-arm positioning device. Background Art

[0002] The electrical connection consists of a contact wire electrical connection clamp, a load-bearing cable electrical connection clamp, and an electrical connection wire. Its function is to ensure smooth current flow between the various conductors of the contact network, between the various sections, and between the contact suspensions of each track. In the electrified railway contact network system, the anchor section joint is a key structure for achieving mechanical and electrical connection between adjacent anchor sections. The performance of its electrical connection device directly affects the current collection quality of the locomotive and driving safety. Currently, the electrical connection of the anchor section joint is often installed between the conversion column and the lower anchor column. During installation, the working branch contact wire, load-bearing cable, non-working branch contact wire, and load-bearing cable are connected in sequence with an electrical connection wire. The electrical connection wire is connected to each wire through an electrical connection clamp, which is a single connection clamp.

[0003] However, existing anchor joint electrical connection devices have significant drawbacks. First, the electrical connection wire must be in a naturally relaxed state. The weight of the electrical connection wire between the working support cable and the contact wire, as well as the weight of the contact wire electrical connection clamp, is concentrated on the contact wire at the contact wire clamp, forming a hard point and causing abnormal wear of the contact wire at that location, affecting the locomotive's current collection quality and driving safety. Second, to accommodate the expansion and contraction of different wires in different directions without affecting the stress state of the adjacent suspension strings, the electrical connection wire must be prefabricated to a precise length and installed in a precise position during installation, which can easily lead to human error. Third, the anchor joint electrical connection has three naturally relaxed electrical connection wire sections, and these are relatively large, making them sensitive to wind sway and contact wire vibration during the passage of the pantograph, easily causing the electrical connection wire to break at the clamp, or even break. Finally, if a break occurs, the electrical connection wire is long and can intrude into the pantograph when hanging down. In severe cases, it can become entangled in the pantograph and cause operational accidents. Summary of the Invention

[0004] The present invention provides an anchor segment joint electrical connection device installed on a wrist-arm positioning device, which is used to solve the problems mentioned in the above background technology.

[0005] The present invention provides an anchor section joint electrical connection device installed on a wrist-arm positioning device, comprising a non-working supporting force cable, a working supporting force cable, a non-working branch contact wire, a working branch contact wire, a working branch positioning tube, and also comprising a working branch contact wire electrical connection wire clamp, a thin electrical connection wire, a wire clamp fixing card, an electrical connection wire clamp, a load-bearing cable electrical connection wire clamp, a thick electrical connection wire, and a non-working branch contact wire electrical connection wire clamp; wherein, the working branch contact wire electrical connection wire clamp is symmetrically arranged on both sides of the working support positioning tube and fixedly connected to the working branch contact wire, the wire clamp fixing card is fixedly installed on the working support positioning tube, and the electrical connection wire clamp is installed on the wire clamp fixing card; both ends of the thin electrical connection wire are respectively connected to a working branch contact wire electrical connection wire clamp, and the midpoint of the thin electrical connection wire is connected to the electrical connection wire clamp; one end of the thick electrical connection wire is connected to the electrical connection wire clamp, and the other end is connected to the non-working branch contact wire through the non-working branch contact wire electrical connection wire clamp; the thick electrical connection wire is connected to the working supporting force cable and the non-working supporting force cable in sequence from the electrical connection wire clamp upward through multiple load-bearing cable electrical connection wire clamps.

[0006] Optionally, the working branch contact wire electrical connection clamp and the non-working branch contact wire electrical connection clamp are both T-shaped wiring clamps.

[0007] Optionally, the thin electrical connection wire is a thin soft copper stranded wire with a nominal cross-sectional area of 70mm 2 .

[0008] Optionally, the thin electrical connection wire is pre-bent into a C-shaped structure during installation, and the apex of the C-shaped structure is connected to the electrical connection wire clamp.

[0009] Optionally, the thick electrical connection wire is connected to the working support cable through two load-bearing cable electrical connection wire clamps, and is connected to the non-working support cable through one load-bearing cable electrical connection wire clamp.

[0010] The beneficial effects of the anchor segment joint electrical connection device installed on the wrist-arm positioning device provided by the present invention are:

[0011] 1. The weight of the thick electric connecting wire and the non-working branch contact wire electric connecting wire clamp, electric connecting wire clamp and multiple load-bearing cable electric connecting wire clamps connected to it for fixing do not act on the working branch contact wire. The working branch contact wire only needs to bear the weight of the thin electric connecting wire and the corresponding working branch contact wire electric connecting wire clamp, and its weight is evenly divided into two points on the working branch contact wire. The impact on the load unevenness of the working branch contact wire is far less than that of the current electrical connection device, which can avoid abnormal wear of the contact wire.

[0012] 2. The electrical connection wire clamps for the working branch contact line and the non-working branch contact line are T-shaped connection wire clamps. When the contact line vibrates up and down, the entire electrical connection wire is lifted as a whole, reducing the possibility of the electrical connection wire breaking from the outlet of the connection clamp. Even in the case of breakage, due to the short length of the thin electrical connection wire, it will not fall into the limit of the pantograph, avoiding the expansion of the accident due to the bow being hit.

[0013] 3. The thin electrical connection wire is pre-bent into a C shape during installation. After installation, it can reduce hard points, make the contact network more elastic, and also make the electrical connection wire's resistance to breakage optimal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 A schematic structural diagram of an anchor segment joint electrical connection device installed on a wrist-arm positioning device provided by an embodiment of the present invention;

[0016] Figure 2 A schematic diagram of the planar structure of the anchor segment joint electrical connection device provided by an embodiment of the present invention installed on a Japanese-style wrist arm;

[0017] Figure 3 A schematic diagram of the three-dimensional structure of the anchor segment joint electrical connection device provided by an embodiment of the present invention installed on a Japanese-style wrist arm;

[0018] Figure 4 A schematic diagram of the connection structure of the thin electrical connecting wire provided in an embodiment of the present invention;

[0019] Figure 5 A schematic diagram of the connection structure of the thick electrical connecting wire provided in an embodiment of the present invention.

[0020] Description of reference numerals:

[0021] 2-working branch contact wire electrical connection wire clamp, 3-thin electrical connection wire, 4-wire clamp fixing card, 5-electrical connection wire clamp, 6-load-bearing cable electrical connection wire clamp, 7-thick electrical connection wire, 8-non-working branch contact wire electrical connection wire clamp, 11-non-working supporting cable, 12-working supporting cable, 13-non-working branch contact wire, 14-working branch contact wire, 15-working support positioning tube. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts also fall within the scope of protection of the present invention.

[0023] like Figure 1-5 As shown, the present invention provides an anchor joint electrical connection device installed on a wrist-arm positioning device, comprising a non-working supporting force cable 11, a working supporting force cable 12, a non-working branch contact wire 13, a working branch contact wire 14, and a working branch positioning tube 15, and further comprising a working branch contact wire electrical connection wire clamp 2, a thin electrical connection wire 3, a wire clamp fixing card 4, an electrical connection wire clamp 5, a bearing cable electrical connection wire clamp 6, a thick electrical connection wire 7, and a non-working branch contact wire electrical connection wire clamp 8; wherein the working branch contact wire electrical connection wire clamp 2 is symmetrically arranged on both sides of the working branch positioning tube 15 and is fixed to the working branch contact wire 14. Connection, the wire clamp fixing card 4 is fixedly installed on the working support positioning tube 15, and the electrical connection wire clamp 5 is installed on the wire clamp fixing card 4; the two ends of the thin electrical connection wire 3 are respectively connected to a working branch contact wire electrical connection wire clamp 2, and the midpoint of the thin electrical connection wire 3 is connected to the electrical connection wire clamp 5; one end of the thick electrical connection wire 7 is connected to the electrical connection wire clamp 5, and the other end is connected to the non-working branch contact wire 13 through the non-working branch contact wire electrical connection wire clamp 8; the thick electrical connection wire 7 is connected from the electrical connection wire clamp 5 upward through multiple load-bearing cable electrical connection wire clamps 6 to the working support force cable 12 and the non-working support force cable 11 in sequence.

[0024] When the anchor section joint electrical connection device installed on the arm positioning device is installed and used, the non-working branch contact line electrical connection clamp 8 is installed on the non-working branch contact line at the conversion column to fix one end of the thick electrical connection wire 7. The thick electrical connection wire 7 is fixed on the non-working support force cable 11 and the working support force cable 12 in sequence from the non-working branch contact line electrical connection clamp 8 upward through three load-bearing cable electrical connection clamps 6. The other end of the thick electrical connection wire 7 is fixed on the working support positioning tube 15 through the electrical connection clamp 5 and the clamp fixing card 4. The midpoint of the thin electrical connection wire 3 is then connected to the electrical connection clamp 5, and the two ends are respectively connected to the working branch contact line electrical connection clamps 2 on both sides of the working branch positioning tube 15. The above structure can realize the current conduction between the working branch and the non-working branch.

[0025] During installation, the portion of the thick electrical connection wire 7 between the load-bearing cable electrical connection wire clamp 6 installed on the non-working support cable 11 and the load-bearing cable electrical connection wire clamp 6 installed on the working support cable 12 needs to take into account the compensation amount of the relative movement of the wires, and a margin needs to be left during installation to ensure that this section of the thick electrical connection wire always remains in a naturally relaxed state.

[0026] During use of the anchor joint electrical connection device installed on the wrist-arm positioning device provided by the present invention, the weight of the thick electrical connection wire 7 and the non-working branch contact wire electrical connection wire clamp 2, the electrical connection wire clamp 5, and the multiple load-bearing cable electrical connection wire clamps 6 connected thereto for fixing it do not act on the working branch contact wire 14. The working branch contact wire 14 only needs to bear the weight of the thin electrical connection wire 3 and the corresponding working branch contact wire electrical connection wire clamp 2, and this weight is evenly divided between two points on the working branch contact wire 14. This has a much smaller impact on the uneven load on the working branch contact wire than existing electrical connection devices, thus preventing abnormal wear of the contact wire.

[0027] It should be noted that the above-mentioned working support positioning tube 15 is a structure on the wrist arm positioning device, which is common knowledge in the field and will not be described here. The anchor segment joint electrical connection device provided by the present invention is applicable to any wrist arm positioning device. Figure 2 and Figure 3 The structure and connection relationship of the electrical connection device of the present invention are described by taking a wrist-arm structure as an example, without any limitation.

[0028] Furthermore, the working branch contact wire electrical connection clamp 2 and the non-working branch contact wire electrical connection clamp 8 are both T-shaped wiring clamps.

[0029] The working and non-working contact wire electrical connection clamps 2 and 8 are T-shaped. When the contact wire vibrates up and down, the entire electrical connection wire rises, reducing the possibility of wire breakage at the clamp exit. Even in the event of a break, the short length of the thin electrical connection wire 3 prevents it from falling within the pantograph's confines, preventing the pantograph from tripping and escalating the incident.

[0030] Furthermore, the thin electrical connection wire 3 is a thin soft copper stranded wire with a nominal cross-sectional area of 70mm 2 Furthermore, the thin electrical connection wire 3 is pre-bent into a C-shaped structure during installation, and the apex of the C-shaped structure is connected to the electrical connection wire clamp 5 .

[0031] Furthermore, the thick electrical connection wire 7 is connected to the working support cable 12 through two load-bearing cable electrical connection wire clamps 6 , and is connected to the non-working support cable 11 through one load-bearing cable electrical connection wire clamp 6 .

[0032] The electrical connection in the prior art has three naturally loose and relatively large electrical connection line segments during installation and use, while the electrical connection device provided by the present invention has only two such segments, both of which are located at non-working branches. The vibration of the contact line when the wind pendulum and pantograph pass through has no effect on them, thereby greatly improving the fatigue life of the electrical connection device and reducing the risk of broken wires and strands of the electrical connection line.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anchor joint electrical connection device installed on a wrist-arm positioning device, comprising a non-working support force cable (11), a working support force cable (12), a non-working branch contact wire (13), a working branch contact wire (14), and a working branch positioning tube (15), characterized in that: It also includes a working branch contact wire electrical connection wire clamp (2), a thin electrical connection wire (3), a wire clamp fixing card (4), an electrical connection wire clamp (5), a load-bearing cable electrical connection wire clamp (6), a thick electrical connection wire (7) and a non-working branch contact wire electrical connection wire clamp (8); The working branch contact wire electrical connection clamp (2) is symmetrically arranged on both sides of the working branch positioning tube (15) and fixedly connected to the working branch contact wire (14); the clamp fixing card (4) is fixedly mounted on the working branch positioning tube (15); and the electrical connection clamp (5) is mounted on the clamp fixing card (4); The two ends of the thin electrical connection wire (3) are each connected to one of the working branch contact wire electrical connection wire clamps (2), and the midpoint of the thin electrical connection wire (3) is connected to the electrical connection wire clamp (5); one end of the thick electrical connection wire (7) is connected to the electrical connection wire clamp (5), and the other end is connected to the non-working branch contact wire (13) through the non-working branch contact wire electrical connection wire clamp (8); The thick electrical connection wire (7) is connected from the electrical connection wire clamp (5) upward through a plurality of the load-bearing cable electrical connection wire clamps (6) to the working support cable (12) and the non-working support cable (11) in sequence.

2. The anchor segment joint electrical connection device installed on the wrist-arm positioning device according to claim 1, characterized in that: The working branch contact wire electrical connection clamp (2) and the non-working branch contact wire electrical connection clamp (8) are both T-shaped connection clamps.

3. The anchor segment joint electrical connection device installed on the wrist-arm positioning device according to claim 1, characterized in that: The thin electrical connecting wire (3) is a thin soft copper stranded wire with a nominal cross-sectional area of 70mm 2 .

4. The anchor segment joint electrical connection device installed on the wrist-arm positioning device according to claim 1, characterized in that: The thin electrical connection wire (3) is pre-bent into a C-shaped structure during installation, and the apex of the C-shaped structure is connected to the electrical connection wire clamp (5).

5. The anchor segment joint electrical connection device installed on the wrist-arm positioning device according to claim 1, characterized in that: The thick electrical connection wire (7) is connected to the working support cable (12) through two of the load-bearing cable electrical connection wire clamps (6), and is connected to the non-working support cable (11) through one of the load-bearing cable electrical connection wire clamps (6).

Images