RU73323U1 - EMERGENCY REPAIR MEANS FOR WORK ON WEAKLY SOILS - Google Patents

Abstract

The utility model relates to the design of a lifting device, which is mounted on a self-propelled vehicle on a caterpillar track and is intended for emergency repair work on trunk pipelines and power lines in light-bearing soils. An emergency repair tool for working on weakly bearing soils contains a chassis made in the form of a two-link floating swamp path, one of the links of which has a hydraulic manipulator with a telescopic boom, outriggers, screw pile supports screwed into the ground to support outriggers on them, and the mechanism for screwing these screw pile piles supports attached to the telescopic boom, and outrigger position locks relative to screw pile supports. The technical result is an increase in safety and reliability when working on weakly bearing soils, as well as a reduction in the time to repair the pipeline 1 d.p. f-ly, 5 ill.

Description

The utility model relates to the design of a lifting device that is mounted on a self-propelled vehicle on a caterpillar track, is intended for emergency repair work on trunk pipelines and power lines in conditions of weak bearing soils, and can be used in the construction of trunk pipelines and power lines on weak bearing soils.

Known means with a lifting mechanism for emergency repairs on pipelines in conditions of weak soil, containing a two-link floating swamp, on the second link of which is mounted a rotary platform on which a cargo winch, a telescopic boom and four outriggers are mounted to support the ground. (General-purpose self-propelled jib crane KS-5771. Operation manual. Description and operation of the crane. Part 1. SM3 7.000.00.00 OM, OJSC Motovilikhinsky Plants, Perm)

This known remedy has the following disadvantages.

Due to the risk of a landslide, outriggers are set at a distance of not less than 4 meters from the edge of the trench, and therefore when the outriggers are extended to a distance of 2875 mm from the axis of the crane, the outreach from the axis of the crane to the axis of the trench will be 9625 mm with a width trenches 5500 mm. With such a departure, the crane's carrying capacity is 5.2 tons. Thus, the crane cannot install a standard pipe 11.3 meters long, 1400 mm in diameter and 8.4 tons in weight, but only with segments of no more than 7 meters in length, which leads to an increase in time and cost of conducting

pipeline repair welding time for one joint is 5 hours.

The weight of such a crane is 45 tons, which reduces patency on weakly bearing soils and when moving on ice on frozen ponds.

To ensure rotation of the rotary platform of the crane, the sides of the sealed body are displayed. The large length of the seals on the folding sides of the body of the second crane link (20.7 meters) leads to their rapid failure (4 -5 cycles), which in turn leads to the loss of the possibility of melt.

The large rear overhang of the boom (4500 mm.) In the transport position worsens the terrain of the crane when overcoming ravines, water barriers and makes it difficult to transport the crane by rail and road.

In addition, the use of a general industrial crane requires exposing the crane in a horizontal plane of ± 3 °, which leads to a time-consuming and lengthy operation of installing calculations under the crane outriggers on weakly bearing soils due to the subsidence of the latter under load.

An emergency repair tool for working on weakly bearing soils is also known, containing a two-link floating swamp, one of whose links has a hydraulic manipulator with a telescopic boom and outriggers (two-link conveyor Vityaz DT-30PK)

This tool eliminated most of the shortcomings of the previous device, however, it has a low carrying capacity and installation of calculations for outriggers on weakly bearing soils due to the subsidence of the latter under load, which is associated with additional time costs, is not ruled out.

The technical result is an increase in safety and reliability when working on weakly soils, as well as a reduction in the time to repair the pipeline.

The specified technical result is achieved by the fact that the emergency repair tool for working on weakly bearing soils, containing the chassis, made in the form of a two-link floating swamp, on one of the links of which a hydraulic manipulator with telescopic boom and outriggers is installed, is equipped with screw pile supports screwed into the ground for support on them outriggers, a screwing mechanism for said screw pile supports mounted on a telescopic boom, and outrigger position fixators relative to screw screws ynyh supports.

Moreover, each position fixer is made in the form of a glass fixed on the outrigger, covering the screw pile support from above, and a finger installed in coaxial holes made in the glass and in the specified support.

Figure 1 shows the emergency repair tools, side view;

figure 2 is the same top view;

figure 3 emergency repair tool at the time of screwing screw pile supports;

figure 4 emergency repair tool at the time of work with the load;

figure 5 - butt node of the outrigger with a screw pile support view And figure 4

The emergency repair tool consists of a floating swamp track 1 with a crawler-mounted chassis, containing articulated links 2 and 3. On the frame 4 of the link 3, a hermetically welded body 5 is installed, in which the hydraulic manipulator 6 and screw pile supports 7 are placed. Four are fixed on the frame 4 outrigger

8. The hydraulic manipulator is equipped with a mechanism 9 for screwing screw pile supports 7 into the ground. There are latches for the position of the outriggers 8 relative to the screw pile supports 7, each of which is made in the form of a cup 10, covering the support 7 from above, and a finger 11 installed in the coaxial holes 12 and 13, made respectively in the cup 10 and in the support 7.

Emergency repair tool works as follows.

First, at the minimum outreach of the hydraulic manipulator 6, when the outriggers 8 are removed, the screw pile supports 7 are screwed by the mechanism 9 through the weakly supporting soil 14 into the supporting soil 15. Next, the outriggers 8 are pushed into the working position and joined with the help of glasses 10 and fingers 11 with screw pile supports 7, providing Thus, the perception of the vertical load from the outrigger 8 by the bearing soil 15 through the screw pile supports 7. The connection of the outrigger 8 with the screw pile support 7 provides the load perception both on compression and pulling . Next, on the boom of the hydraulic manipulator 6, the mechanism 9 of screwing 4 is replaced with a hook suspension 16 and lifting work is performed.

The use of screw pile supports as bases for outriggers allows to minimize the reach of the boom of the cargo mechanism and to reduce the necessary load moment, due to the fact that the emergency repair tool is installed as close as possible to the repaired pipeline with the outriggers resting on the screw pile supports.

The large bearing capacity of screw piles provides a rigid support for emergency repair equipment during operation. All equipment is located in the dimensions of the bodies.

Claims (2)

1. Emergency and repair tool for working on weakly bearing soils, containing the chassis, made in the form of a two-link floating swamp, on one of the links of which there is a hydraulic manipulator with a telescopic boom and outriggers, characterized in that it is equipped with screw pile supports screwed into the ground for support on them outriggers, a screwing mechanism for the indicated screw pile supports, attached to the telescopic boom, and outrigger position locks relative to the screw pile supports. 2. The emergency repair tool according to claim 1, characterized in that each position lock is made in the form of a glass fixed to the outrigger, covering the screw pile support from above, and a finger installed in coaxial holes made in the glass and in the specified support.