RU55696U1 - CONTACT WIRING SUSPENSION DEVICE IN THE TRANSITION SPAN OF THE CONTACT NETWORK - Google Patents

Abstract

The device relates to a contact network of electric vehicles. The purpose of the invention is the improvement of current collection is achieved by stabilizing contact pressing by reducing the stiffness of the contact pendants in the middle of the transition span by the required amount. To do this, strings with elastic elements with a given elastic force are mounted in the transition span. The use of the string corrects the stiffness of the contact pendants in the transition spans of the pair of anchor sections. The advantages of the proposed string are increased reliability and efficiency of current collection at the interfaces of the anchor sections due to equalization of stiffness in the span.

Description

The device relates to a contact network of electric vehicles. It can be used in contact network devices for high-speed train traffic.

Similar devices are known, they are link and loop strings, strings from a nylon cable, strings with dampers (containing a coil spring and a pneumatic damper), strings with wishbones twisting the carrying cable [1].

The disadvantage of the above devices is the lack of elasticity sufficient to eliminate the concentration of stiffness of the contact pendants in the transition span.

The prototype is a contact span transition span string containing connection clamps rigidly fixed to the carrier cable and fixing the guide bar with a slider on it, connected with a string clamp of the contact wire by a link string. The guide bar is pivotally attached to the connecting clamps, one of the connecting clamps being provided with a rod with a spring, and the second is supplemented by a flexible conductive string electrically connected to the slide and an additional clamp on the contact wire, while both strings are spaced from each other in opposite directions from the axis slider [2]. The disadvantage is the ineffective operation of the device due to the fact that the spring elastic forces act not only on the contact wire, but also on the carrier cable.

The specified disadvantage is deprived of the proposed device.

The purpose of the proposed device is to improve the quality of current collection due to the stabilization of contact pressing.

This goal is achieved by the fact that the connecting clamps of the device are not attached to the carrier, but to an additional cable.

Figure 1 shows the installation diagram of the proposed device.

The contact wire 1 is connected to the supporting cable 2 using strings 3. The proposed device 4 is installed between the contact wire 1 and an additional cable 5, which is suspended between the supports of the transition span.

Figure 2 shows a diagram of the proposed device.

The device is mounted on an additional cable 6 using the attachment unit of the strings 7. In the vertical hole 9 of the casing 12 there is a rod with an eye 8 attached to the mounting projections of the node 7. The cover of the casing 12 is supported by a spring 10, dressed on a rod 8, fixed by a nut 11 and closed the casing 12. The link string 13 is attached at one end to the mounting ring of the casing 12, the other end to the contact wire 14 using a string clip 15.

The device operates as follows.

In the absence of pressing the current collector, the device works like an ordinary string, providing the necessary sag line of the contact wire at this point. When the current collector passes from the side of the elastic element, an additional force arises directed in the same direction as the force of pressing the current collector onto the contact wire. Thus, a reduction in the stiffness of the suspension in the middle of the transition span is achieved and a smooth passage of the current collector is ensured, which improves reliability (due to the prevention of damage to the current collectors and the contact network) and economy (as a result of reduced wear on the contact wires and the current collector inserts) of the current collector at the junctions of the anchor sections.

The advantages of the proposed string are increased reliability and efficiency of current collection at the interfaces of the anchor sections due to equalization of stiffness in the span.

List of sources used

1. Marquardt K.G. Contact network. M .: Transport, 1994, p. 84-85, fig. 5.29, 5.31.

2. A.S. No. 2163869 Russia MKI B 60 M 1/22. String of transition passage of the contact network V.P. Mikheev, E.R. Abdulin; OmGUPS. Declared 12.01.2000.

Claims (1)

A contact wire suspension device in the transition span of the contact network, comprising a string attachment unit, to the mounting projections of which a rod with an eye is fastened passing into the vertical hole of the casing cover, while the casing cover is supported by a spring, dressed on a rod fixed by a nut and closed by a casing, this link string is attached with the lower end to the contact wire using a string clamp, characterized in that the attachment string is attached to an additional cable, which is suspended between the supports of the transition span, the link string is attached with its upper end to the casing fixing ring.