RU31595U1 - CONTACT NETWORK SUPPORT COMPLEX - Google Patents

Description

The complex for straightening the supports of the contact network refers to the machines of the technological complex, and is intended, in particular, for leveling the railway supports that deviate from the vertical position.

Due to the design flaws of the foundation into which the support is installed, as well as the condition of the subgrade around it, a number of supports lose stability over time - they get unacceptable deviations from the vertical. This requires periodic monitoring of the supports and their straightening.

The process of leveling the supports requires operational, sequentially carried out in time, certain types of technological work:

excavation near the support from the side opposite the slope;

setting the support to a vertical position by mechanical

impacts

backfill the voids formed and soil compaction around the support

There is a universal complex of UKBS (“The concept of mechanization of repair and modernization of the contact network of electrified railways, Moscow, Ministry of Railways of the Russian Federation, 2000) for drilling wells. Its set includes: a platform with an autonomous course, having a slewing ring based on a crane, an arrow with interchangeable drilling equipment. The disadvantage of the complex is the presence of an additional trailed platform with compressors. In addition, with the help of this complex it is impossible to carry out all the technological work on straightening the supports.

Also known is a multi-purpose rail car type ADM-1C mounted on a railway platform. It is intended for maintenance, repair and installation of the contact network. Including, for development of ditches and installation of support. (“The concept of mechanization of repair and modernization of the contact network of electrified railways, Moscow, Ministry of Railways of the Russian Federation, 2000). The specified motor-car is equipped with autonomously working crane and drilling rig. The disadvantage of this motor-car is the lack of a reinforced concrete support gripping mechanism complete with a crane (for leveling the supports); the drill outreach is insufficient for drilling (in our case, for excavation near the support) with a maximum support dimension of 5.7 m from the track axis.

Thus, there are known machines and mechanisms designed to perform certain types of work of the technological cycle for straightening supports, but there is no mechanism capable of performing all of the above works in a complex.

The proposed complex for straightening the supports is designed to mechanize the cycle of work on straightening the supports of the contact network. For this, all the mechanisms included in the complex (crane, drilling rig and soil compactor) are mounted on one transport platform, and are driven by a single power plant. The crane boom is equipped with a special mechanism for gripping a reinforced concrete support, and is structurally designed in such a way that makes it possible to replace the support gripping mechanism with a drilling rig. Such unification significantly reduces the cost of manufacturing the entire complex, and significantly reduces the time for repair work. Practice has shown that the concept of constructing such a complex is correct, and the prototype needs minor modifications.

Figure 1 shows the assembly drawing of the proposed complex for straightening the supports, explaining the design of the complex, the interaction of parts and mechanisms and their purpose. In FIG. 2 and FIG. 3 depict the relative position of the complex and the support of the contact network during excavation near the support (using a drilling rig) and straightening the support using a gripping mechanism.

The complex for straightening the supports of the contact network (Figure 1) is mounted on the transport platform 1. The complex includes: crane 2 with a telescopic boom 3, a drilling unit 4, a power unit 5, a vibration unit 6. To control the crane's lifting capacity and limit the force it develops, the crane boom is equipped with a load moment limiter 7, and a removable support gripping mechanism 8 is installed on the final telescopic boom end section. torque transport platform is provided with outriggers rail grippers 9 and 10.

The complex for straightening the supports of the contact network works as follows:

The principle of bearing alignment is based on the effect of hydraulic or other forces on the surface of the support. The closer the point of application of force to the base of the support (no more than 1.5 meters from the level of the rail head), the lower the bending moment. To straighten the supports installed in soft soils, a telescopic boom of the crane is extended, equipped with a gripping mechanism of the support 8. The gripping support is subjected to a force perpendicular to the axis of the support and directed in the direction opposite to the inclination. Basically, this force is perpendicular to the axis of the railroad track. To the left or right, the supports practically do not collapse, because they are held by the contact wires mounted on them.

To straighten supports in dense soils and supports that have been in an inclined state for a long time, it is necessary to dig the support to a depth of 1.5-2 meters from the side opposite the inclination. For this, the gripping mechanism of the support 8 is replaced by a drilling rig 4. A drilled hole is sufficient to straighten the supports in almost any soil. The control of the applied load, in order to avoid destruction of the support, is controlled by the load moment limiter 7, and does not exceed 5000 kg.

To compact the soil after straightening the support, a vibration unit is used 6. All mechanisms are driven by the power unit 5.

Claim

A complex for straightening the contact network supports, including a crane with a telescopic boom, equipped with a load moment limiter; a drill rig and a vibro rig, characterized in that the mechanisms that make up the complex are powered by a single power plant, mounted on a common transport platform equipped with outriggers and rail grips, and the final movable section of the crane boom is equipped with a removable support gripper that can be replaced with a drill rig.

2001108174

Complex for straightening the contact network supports

Claims (1)

The complex for straightening the supports of the contact network, including a crane equipped with a load moment limiter, a drilling installation, a vibroinstallation and a gripping mechanism for a support, driven by a single power installation, and mounted on a common transport platform equipped with outriggers and rail clamps, characterized in that a crane with a telescopic boom is used to straighten the supports to a vertical position, and a removable support gripping mechanism is mounted on the final sliding section of the telescopic boom.