SU1532359A1 - Supporting assembly for contact wire suspension - Google Patents

Abstract

This invention relates to electric transport, in particular to contact suspensions. The purpose of the invention is to increase the elasticity of the contact wire in the support zone by the fact that a supporting cable 2 at some distance from the supporting structure 2 is attached with its upper ends a spring cable 3, and at a much smaller distance with its upper ends rigid oblique struts 4 located in the plane of the contact suspension, the lower ends of which are connected to the main rod 5 of the retainer. A bracket 6 is pivotally attached to each strut 4, connected in its middle part by a string 7 with a spring cable 3, and at the end a string 8 with a contact wire 9 and a safety string 10 with a carrying cable 1. Under the action of a current collector the contact wire 9 rises under the string 8 the larger, the larger the ratio of the distances between the hinge of the bracket 6 and the points of attachment of the strings 8 and 7 to it. 1 Il.

Description

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And, the celebration relates to rail transport, in particular to the contact suspension of main and urban electric transport.

The purpose of the invention is to increase the elasticity of the contact wire in the support zone.

The drawing shows the reference node contact / yvesvki, General view.

The device contains a supporting cable 1 associated with a supporting structure 2, in which cantilever, a rigid crossbar crossbar, a flexible crossbar cable can be used. To the existing cable 1 at () a smaller distance from the supporting structure 2 is attached with its ends of springs | Ts) 1st cable 3, and at a much smaller distance - with its upper ends there are two rigid oblique struts 4 located in the plane of the contact suspension. The lower ends of the struts 4 are connected to the main rod of the articulated-1O retainer 5 or to the lower fixing cable of the flexible cross member. Each rigid oblique strut 4 is hingedly attached to bracket 6, which is connected in its central part by a vertical string 7 to a spring cable 3, and at the end by a string 8 with a contact wire 9 and a safety string K) with an incompatible cable I.

The device works as follows.

When an electric rolling stock moves under the action of a current collector, contact wire 9 rises, disrupting the static equilibrium of forces and moments applied to bracket 6, and it takes a new balanced position, O11, 1 equal to the equality of two oppositely directed torques (carry ibHo bracket hinge 6): one- N (L o01 si, 1 t of tin contact1 o

npoBo.ia 9, reduced on the ve, | ichin si, J1 Press the current collector transmitted by the string 8, and the weight of the bracket 6; The other is about () from usi, 1i, 11e (1 is given by the string 7 from the spring cable 3 and is carrying about the cable I.

E. The sensitivity of the contact wire 9 under the string 8, and consequently, 1 foot, and the size of the contact wire in this place, under the action of the current collector, depends on the ratio of the distances between

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the hinge of the bracket 6 and the points of attachment of strings 8 and 7 to this bracket. The larger this ratio is, the other things being equal parameters of the contact network are the elasticity of hanging the contact wire in the area of the string 8 above, t, that is, the better the current collection condition.

To regulate the e-tasticity of the contact wire in the support zone, it is enough to slightly displace the point at which the string 7 is attached to the bracket 6: bringing it closer to the hinge of the bracket 6 leads to an increase, and removal to a decrease in elasticity. For this, several holes are provided in the middle part of the bracket 6 for connecting the string 7.

Greater vertical movement of the string 8 as compared to movement of the string 7 determines another important property of the reference node: its use in a semi-compensated contact suspension almost evens the change in the height of the suspension of the contact wire 9 in the support zone and in the middle part of the span when the suspension wire sails 1 change temperature distortions, i.e., further improves the current collection conditions in the semi-compensated suspension.

Claims (1)

Invention Formula The support unit of the contact suspension, containing a spring cable connected to the ends of the carrying cable, and through the strings with the contact wire, the retainer, the main rod of which is connected to the carrying cable through rigid oblique struts, in order to increase the elasticity of the contact wire in the support zone, it is equipped with two oppositely directed brackets located in the plane of the contact suspension and pivotally connected to one end with rigid oblique struts, the other ends through the strings from the end a clock wire, and the middle part of each bracket is connected via a string to a spring cable.