RU2493029C1 - Method of mounting cantilever at railway trolley pole - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to railway electric power supply lines, particularly, to trolley poles and suspensions. For determination the distance from rail head to trolley poly cantilever clamps fitting, first, reference point is defined by projecting rail head level onto the pole by laser target designator. Said laser target designator is used to measure distance between reference point and trolley poly cantilever top clamp fitting point and required distance between reference point and trolley pole cantilever lower clamp fitting point. Lower clamp is mounted at the pole to lift preassembled cantilever and fit it in mounted top and lower clamps. Note here that laser target designator Zenit 4T and optical rangefinder Leica Disco D3 are used.

EFFECT: precise design distance between rail head and cantilever clamps.

3 cl, 1 dwg

Description

The invention relates to power lines for railway transport, namely, support and suspension devices for attaching contact wires.

A known method of mounting consoles using a machine with an articulated boom located on a railway platform (VSN-116-65. Technical guidelines for the technology of construction and installation work in the electrification of railways (power supply device. - 1965), including the installation of consoles using a machine MSHTS-2, equipped with an arrow with a basket, which is led to the platform with consoles, lay the console bracket on the rollers mounted on the boom basket, load all the console parts into it, raise the arrow to the secured level the console, assemble the console and install it on the support of the contact network.

The disadvantage of this method is the low accuracy of the installation of the console height of the support, high complexity and the danger of assembly and installation work at height.

The closest in technical essence to the proposed method is the method of mounting the consoles on the supports of the railroads (Application of the Russian Federation No. 99108321, IPC V60M 1/28. Kudryashov V.E., Kudryashov E.V., Ivanov A.V., Lavrentiev A.F. ., Munkin VV Method of mounting consoles on supports of electrified railways - Publish. 02.10.2001), including pre-assembly of the console before lifting on the support with the installation of movable fasteners in a position depending on the size of the support installation, and subsequent lifting and installation of the console on a support. The position of the movable adjusting fasteners on the supporting elements for each console is calculated individually.

The disadvantage of this method is the low accuracy of the installation of the console in the height of the support, since the console is mounted in the desired position "by eye", without additional precise adjustment.

The aim of the invention is to increase the accuracy of the installation of the console height of the support in the desired position, reducing the complexity of mounting the console on the support of the contact network, increasing the safety of assembly and installation work at heights.

This goal is achieved by the accuracy of determining the distance from the level of the rail head to the installation site of the console clamps by the height of the support.

The essence of the invention is that on the support of the contact network, the reference point is determined by projecting the level of the rail head onto the support using a laser target indicator, the required distance between the reference point and the attachment point of the console upper bracket is measured using an optical range finder, the upper bracket is mounted on the support, then the required distance between the reference point and the attachment point of the lower console clamp is also measured, the lower clamp is mounted on the support, after which the pre-assembled console The ol is lifted and installed in the mounted upper and lower clamps of the console, using a Zenit 4T laser target designator and a Leica Disto D3 optical range finder.

Figure 1 presents a diagram of the implementation of the method of mounting the console on the support of the contact network of railways, including the support of the contact network 1, which is applied to the reference point 2, obtained using the beam 5 of the laser pointer 3 mounted on the head of the rail 4. From the reference point 2 using an optical rangefinder 6 with a beam 12 reflected from the reflector 11, measure the distance to the attachment point of the upper 7 and lower 8 clamps, in the ears 9 and 10 of which a pre-assembled console is installed (not shown in the diagram).

The proposed method is as follows.

Currently, the pre-assembled console with the mounting clamps is transported to the support and mounted on the support using a crane with an arrow. This method does not allow you to accurately install the console in the desired position along the height of the support without subsequent additional adjustment, which is very time-consuming. The proposed method eliminates additional adjustment, as it allows you to immediately accurately set the console in the desired (design) position.

In the proposed method, before measurements on the rail head 4, a laser pointer 3 is installed, a level of rail head 4 is projected by a laser beam 5 onto the support of the contact network 1, the obtained point 2 is fixed on the support of the contact network 1. Then, a reflector is attached to the ears 9 and 10 of the clamps 7 and 8 11, which is a metal plate with a magnet. An optical rangefinder 6 is attached to the support 1 at the reference point 2.

To take measurements, turn on the optical range finder 6 and direct its beam 12 to the reflector 11, and the beam 12 should be parallel to the axis 13 of the support 1. The obtained distance should be equal to the design distance from the level of the rail head 4 to the upper clamp 7 of the console, the clamp is mounted at the received level when the optical range finder is on 6.

In the same way, the design distance from the level of the rail head 4 to the lower clamp 8 is determined, the clamp is mounted at the obtained level with the optical range finder 6 turned on.

The pre-assembled console is installed in precisely mounted clamps 7 and 8 according to the size of the support of the contact network 1.

Thus, the proposed method of mounting the console on the support of the contact network allows you to accurately observe the design distance from the level of the rail head to the clamps on which the console is mounted. The connection of two components prepared for installation (console and clamps) requires less installation time, increases the safety of work at heights.

Claims (3)

1. A method of mounting a console on a support of a contact network of railways, including preassembling a console, installing movable wire fastening elements on it according to the size of a support of a contact network, raising the console and installing it on a support, characterized in that a reference point is determined on the support of the contact network by projecting the level of the rail head onto the support using a laser designator, measure the required distance between the reference point and the attachment point of the upper clamp using an optical range finder This console, mount the upper clamp on the support, then also measure the required distance between the reference point and the attachment point of the lower console clamp, mount the lower clamp on the support, after which the pre-assembled console is lifted and installed in the mounted upper and lower console clamps. 2. The method of mounting the console on a metal support of the railway contact network according to claim 1, characterized in that a Zenit 4T type laser pointer is used. 3. The method of mounting the console on a metal support of the contact network of railways according to claim 1, characterized in that they use an optical range finder such as Leica Disto D3.

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