RU2057855C1 - Device for loosening soil over underground pipelines - Google Patents

Abstract

FIELD: excavating equipment. SUBSTANCE: device has a ripper and plow blades. The ripper is made of three rigidly interconnected teeth. The teeth may be moved in vertical direction about rods placed in device body. The rods has shock absorbing springs. A transverse is used to interconnect top of the teeth. The transverse has openings to pass the teeth. Copying device is attached to the teeth. Visor pointer is provided for upper end of the middle tooth. EFFECT: high productivity. 4 dwg

Description

 The invention relates to earthmoving equipment and can be mainly used for loosening soil above an underground pipeline without opening a trench.

 A device for loosening the soil. (Construction Mechanization, 1988, N 10, pp. 21-22) mounted on a hydraulic tractor, including one loosening tooth mounted in the housing movably by means of articulated earrings.

 There is also a device for loosening the soil (Halperin A.I. Installation and construction machines and mechanisms for the construction of gas and oil pipelines. M. Nedra, 1964, p.52), including three loosening teeth that are attached to the shoes by fingers and nuts with cotter pins. A disadvantage of the known devices is the inability to ensure their movement along the axis of the extracted pipeline and the significant likelihood of it with the teeth of the cultivator.

 The closest in technical essence to the proposed invention is the working body of the excavator for opening the pipeline, including a double rotor covering the pipeline on the sides, a cultivator located above the pipeline and shields mounted on the back support located behind the rotor on the pipeline sides, each of which is installed with the possibility of forced rotation in the plan and from the side of the pipeline is equipped with a plow blade placed at an angle to the axis of the latter, covering its upper edge of the lower surface of the pipeline. The drive of each pick-up shield is made in the form of a power cylinder horizontally placed between it and the rear support [1] Disadvantage is the low reliability and efficiency of the device when loosening the soil above the underground pipeline.

 The purpose of the invention is to increase the reliability and efficiency of the device by eliminating damage to the underground pipeline.

 This goal is achieved in that the ripper is made in the form of three teeth rigidly interconnected by a spacer and mounted with the possibility of movement in the vertical direction relative to the rods equipped with shock absorbing springs of double action, and in the upper part of the teeth are interconnected by a traverse in which holes are made for passing the ripper teeth , and in the lower part are equipped with a concave copier, while the upper end of the middle tooth of the cultivator is equipped with a sighting arrow.

 In FIG. 1 shows a General view of the device, front view; figure 2 is the same side view; figure 3 is a view along arrow A in figure 2; in Fig.4 section BB in Fig. 2.

 The device includes a housing 1, in which three loosening teeth 2 and 3 are installed with the possibility of changing the length. Tooth 2 is made shorter than the other two and is designed for loosening the soil directly above the upper generatrix of the pipeline 4, and the teeth 3 are of the same length and are designed for loosening the soil on the sides pipeline 4. Teeth 2 and 3 for rigidity are connected by a spacer 5, and in the lower part are equipped with a concave copier 6, sliding during operation of the device through pipeline 4, vertical guiding rods 7 are placed on the edges of the housing 1 with them four shock-absorbing springs 8 and 9 of double action, working with fluctuations in the depth of the pipeline. Guide rods 7 in the upper part are interconnected by a traverse 10, through which the teeth of the cultivator are passed. The middle tooth 2 of the device in the upper part is equipped with a sighting arrow 11 made of a metal rod, which serves as a guide for the direction of movement. The device has a front trailer 12 to the towing vehicle, and three rear brackets 13 for coupling a special device for dismantling pipelines and a plow 14.

 The device operates as follows. Previously, in the initial section of the dismantled pipeline, a trench is prepared with its surface exposed. Then, a ripping device is installed above the pipeline, extending and fixing its teeth 2 and 3 at the required depth. In this case, the copier 6 lies on the surface of the pipe 4. If necessary, install and fix the plow 14. After this, the cultivator for the trailer 12 is hooked to the tractor. When the tractor moves, the soil is loosened above the pipeline with the simultaneous partial opening of the trench. When the depth of the pipe decreases, the upper springs 8 work, and when the lower springs 9 increase, ensuring the continuous movement of the copier through the pipeline. Turns of the pipe in the horizontal plane are indicated by the sighting arrow 11. In this case, if the copier deviates along the pipe to the left, then the sighting arrow deviates along the pipe to the right and vice versa, if the copier deviates to the right, then the sighting arrow deviates to the left.

 Thus, according to the deviations of the sighting arrow 11, the driver is able to loosen along the axis of the pipeline, excluding its damage.

Claims (1)

 DEVICE FOR GROWING SOIL OVER THE UNDERGROUND PIPELINE, including a cultivator and plow dumps, characterized in that the cultivator is made in the form of three teeth rigidly interconnected by a spacer, mounted with the possibility of movement in the vertical direction relative to the rods located in the device body and equipped with double shock absorbing springs actions, and in the upper part of the teeth are interconnected by a traverse, in which holes for passes of the teeth of the cultivator are made, and in the lower part are provided with a wagon with a copier, while the upper end of the middle tooth of the cultivator is equipped with a sighting arrow.

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