General type crimping terminal and overhead line system integral dropper

Abstract

The invention relates to a general type crimping terminal and an integral dropper of a contact network, which are applied to the integral dropper of the high-speed rail contact network, the crimping terminal is internally provided with a wire through hole through which a dropper wire used by the contact network can penetrate, one crimping terminal is connected with a first dropper wire clamp for clamping a carrier cable, and the other crimping terminal is connected with a second dropper wire clamp for clamping a carrier cable. The other crimping terminal is connected with a second dropper wire clamp for clamping the contact wire; and after the dropper wire passes through the wire through hole, the periphery of the crimping terminal is pressed to limit the displacement of the dropper wire. The crimping terminal of an integrally formed structure is adopted, the two ends of the dropper line are connected with the first current-carrying hole and the second current-carrying hole respectively after passing through the line passing holes, and compared with a connection mode that a current-carrying ring and the dropper line are separated in the prior art, the use reliability is improved; and a process of crimping the current-carrying ring is reduced, so that the integrity of the whole dropper can be ensured even if the crimping part is loosened.

Description

Technical Field

[0001] The invention relates to the technical field of electrified railway contact network, in particular to a through-type crimping terminal and an integral contact network suspension string having the crimping terminal. Background Art

[0002] In the existing high-speed railway contact network, the integral hanging string structure is used. Figure 4 As shown, after the current is transmitted to the copper ring terminal 7 through the suspension string 2, the copper ring terminal 7 is then transmitted to the load-bearing wire 5 or the contact wire 6 through the current-carrying ring 8 and the suspension string clamp.

[0003] In the above structure, the two ends of the upper and lower copper ring terminals 7 are crimped and connected to the current-carrying ring 8 and the suspension string 2, respectively, so there are multiple crimping points, which increases the manufacturing process. In addition, since the overall suspension string is greatly affected by vibration during use, too many crimping points are prone to fall off, affecting the reliability of current transmission, and also increasing the resistivity of the overall suspension string. When in use, the copper ring terminal 7 is strongly corroded, resulting in a significant reduction in the energy transmission efficiency of the contact network. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to overcome the deficiencies in the prior art, the present invention provides a common crimping terminal and an integral contact network suspension string having the crimping terminal, by changing the connection method between the suspension string line and the press terminal to reduce the crimping points and improve the reliability of the overall suspension string.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a through-type crimping terminal, which is applied to the integral suspension string of the high-speed railway contact network. The crimping terminal is provided with a wire hole through which the suspension string used in the contact network can pass. After the suspension string passes through the wire hole, the outer periphery of the crimping terminal is compressed to limit the displacement of the suspension string.

[0006] Specifically, the wire-passing hole comprises an axial hole and a radial hole, and the axial hole and the radial hole are connected and penetrated by a circular arc segment.

[0007] Preferably, the radial hole is a tapered hole, and the small end of the tapered hole is connected to the circular arc segment.

[0008] Preferably, when the suspension string passes through the wire hole, an angle α between its insertion direction and its exit direction is 60° to 90°.

[0009] An integral suspension string of a contact network having the above-mentioned through-type crimping terminal comprises a first suspension string clamp and a second suspension string clamp which are arranged correspondingly above and below, the first suspension string clamp clamps a load-bearing cable, the second suspension string clamp clamps a contact wire, the suspension string is arranged between the first suspension string clamp and the second suspension string clamp, one crimping terminal is connected to the first suspension string clamp, and the other crimping terminal is connected to the second suspension string clamp, the upper end of the suspension string is connected to the first current-carrying hole on the side of the first suspension string clamp, and after the suspension string passes through the wire-through hole connected to the crimping terminal of the first suspension string clamp and the wire-through hole connected to the crimping terminal of the second suspension string clamp in sequence, the lower end of the suspension string is connected to the second current-carrying hole on the side of the second suspension string clamp.

[0010] The beneficial effects of the present invention are as follows: the present invention adopts a crimping terminal with an integrally formed structure, and the two ends of the suspension string are respectively connected to the first current-carrying hole and the second current-carrying hole after passing through the wire hole. Compared with the connection method of the current-carrying ring and the suspension string separately adopted in the prior art, the reliability of use is increased; a crimping process for the current-carrying ring is reduced, and even if looseness occurs at the crimping point, the integrity of the entire suspension string can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure of the crimping terminal of the present invention.

[0014] Figure 3 It is a schematic cross-sectional structural diagram of the crimping terminal of the present invention.

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the existing overall suspension string of the contact network.

[0016] In the figure: 1. crimping terminal, 1-1. wire hole, 1-2. axial hole, 1-3. radial hole, 1-4. arc segment, 2. suspension string, 3. first suspension string clamp, 3-1. first current-carrying hole, 4. second suspension string clamp, 4-1. second current-carrying hole, 5. load-bearing cable, 6. contact wire, 7. copper ring terminal, 8. current-carrying ring. DETAILED DESCRIPTION

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0018] like Figure 1 , Figure 2A through-type crimping terminal is shown, which is applied to the integral suspension string of the high-speed railway contact network. A wire-through hole 1-1 is opened in the crimping terminal 1, and the wire-through hole 1-1 includes an axial hole 1-2 and a radial hole 1-3. The axial hole 1-2 and the radial hole 1-3 are connected and penetrated by an arc segment 1-4, wherein the radial hole 1-3 is a conical hole, and the small end of the conical hole is connected to the arc segment 1-4.

[0019] The suspension wire 2 used in the contact network can pass through the wire hole 1-1. The suspension wire 2 passes through the axial hole 1-2 of the wire hole 1-1 and passes through the arc segment 1-4, and then passes through the radial hole 1-3. The angle α between the penetration direction and the exit direction of the suspension wire 2 in the wire hole 1-1 is 70°. Figure 3 As shown, the arrows in the figure indicate the insertion and exit directions of the suspension string 2.

[0020] An integral suspension string of a contact network includes the above-mentioned two crimping terminals 1. The integral suspension string includes a first suspension string clamp 3 and a second suspension string clamp 4 which are arranged correspondingly above and below. The first suspension string clamp 3 clamps a load-bearing cable 5, and the second suspension string clamp 4 clamps a contact wire 6.

[0021] The upper crimping terminal 1 is connected to the hook of the first string clamp 3 through its ring, and the lower crimping terminal 1 is connected to the hook of the second string clamp 4 through its ring.

[0022] The suspension string 2 is arranged between the first suspension string clamp 3 and the second suspension string clamp 4, wherein the upper end of the suspension string 2 is connected to the first current-carrying hole 3-1 on the side of the first suspension string clamp 3, and the suspension string 2 passes through the wire hole 1-1 of the crimping terminal 1 connected to the first suspension string clamp 3 and the wire hole 1-1 of the crimping terminal 1 connected to the second suspension string clamp 4 in sequence, and then the lower end of the suspension string 2 is connected to the second current-carrying hole 4-1 on the side of the second suspension string clamp 4.

[0023] After the suspension string 2 passes through the wire hole 1 - 1 , the crimping terminal 1 is deformed inwardly by crimping, thereby generating a squeezing force on the suspension string 2 passing through the wire hole 1 - 1 , thereby limiting the axial displacement of the suspension string 2 .

[0024] The present invention adopts a crimping terminal 1 with an integrally formed structure. The two ends of the suspension string 2 are respectively connected to a first suspension string clamp 3 and a second suspension string clamp 4 after passing through a wire hole 1-1. Compared with the connection method in which the current-carrying ring 8 and the suspension string 2 are separately connected in the prior art, the reliability of use is increased; since a crimping process for the current-carrying ring 8 is reduced, the process is simplified, and the integrity of the entire suspension string can be guaranteed even if looseness occurs at the crimping point.

[0025] Since the transmission process from the suspension string 2 to the current-carrying ring 8 is omitted, the suspension string 2 is used to directly transmit to the suspension string clamp, thereby further reducing the resistivity of the entire suspension string, reducing the electrical corrosion of the crimping terminal 1 during use, and improving the energy transmission efficiency. Moreover, even if the crimping of the crimping terminal 1 becomes loose, the circuit can still be guaranteed to be unobstructed, and the displacement of the crimping terminal 1 will not cause the circuit to be disconnected, thereby affecting energy transmission and causing hidden dangers when the train passes.

[0026] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A through-type crimping terminal, used for the integral hanging string of the high-speed railway contact network, characterized by: The crimping terminal (1) is provided with a wire hole (1-1) through which a suspension wire (2) used in the contact network can pass. After the suspension wire (2) passes through the wire hole (1-1), the outer periphery of the crimping terminal (1) is compressed to limit the displacement of the suspension wire (2).

2. The through-type crimping terminal according to claim 1, characterized in that: The wire-passing hole (1-1) comprises an axial hole (1-2) and a radial hole (1-3); the axial hole (1-2) and the radial hole (1-3) are connected and penetrated by a circular arc segment (1-4).

3. The through-type crimping terminal according to claim 2, characterized in that: The radial hole (1-3) is a tapered hole, and the small end of the tapered hole is connected to the circular arc segment (1-4).

4. The through-type crimping terminal according to claim 3, characterized in that: When the suspension string (2) passes through the wire hole (1-1), the angle (α) between its insertion direction and its exit direction is 60° to 90°.

5. An integral catenary suspension string having a universal crimping terminal as claimed in any one of claims 1 to 4, comprising a first suspension string clamp (3) and a second suspension string clamp (4) arranged correspondingly in the upper and lower parts, the first suspension string clamp (3) clamps a load-bearing cable (5), and the second suspension string clamp (4) clamps a contact wire (6), characterized in that: The suspension string (2) is arranged between a first suspension string clamp (3) and a second suspension string clamp (4); one crimping terminal (1) is connected to the first suspension string clamp (3), and the other crimping terminal (1) is connected to the second suspension string clamp (4); the upper end of the suspension string (2) is connected to a first current-carrying hole (3-1) on the side of the first suspension string clamp (3); after the suspension string (2) passes through the wire-through hole (1-1) of the crimping terminal (1) connected to the first suspension string clamp (3) and the wire-through hole (1-1) of the crimping terminal (1) connected to the second suspension string clamp (4) in sequence, the lower end of the suspension string (2) is connected to the second current-carrying hole (4-1) on the side of the second suspension string clamp (4).

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