Device for trenchless laying of pipelines by pricking method

FIELD: construction.

SUBSTANCE: device for trenchless pipeline laying by pricking method comprises the feeding mechanism from the guide frame with horizontal and vertical guide rollers with the possibility of their interaction with the outer surface of pipeline to be laid, and cable pulling winch, rod fixedly secured to the flange mounted on the front end towards the puncture of the laid pipeline, with the ball bearing installed on its end with possibility of supporting on it of the hollow working tip of conical form, inside the hollow working tip at its area of cylindrical shape, electric motor of circular rotation rod is installed relative to the axis of rotation rod with its support on the flange by means of seal assemblies. Stator of electric motor is fixed on the rod, and rotor - on the inner surface of horizontal area of the hollow working tip. Helical surface of auger-type is fixed on the outer surface of cone area of working tip.

EFFECT: simplification of the device design, increase of reliability and lifetime of its operation, reduction of value of the required force for pricking and energy consumption.

2 dwg

 

The invention relates to the construction of pipelines, namely, devices intended for trenchless laying of pipelines by way of puncture.

Known adopted as a prototype device for the trenchless laying of pipelines by way of puncture containing the feed mechanism from the guide frames with horizontal and vertical guide rollers, with the possibility of their interaction with the external surface of the underground pipe and cable pulling winch, hollow work the tip of the conical shape, vibrator circular oscillation which is made in the form of an electric motor with a hollow shaft with an offset center of gravity relative to the axis of rotation, and the stator is fixed in the working tip. Inside the hollow shaft is placed a rod fixedly mounted on the flange mounted on the front in the direction of the puncture end of the laid pipe. Device rotation is made in the form of a cap with a hole, objetivas interleaved surfaces, rotating and linear motion along the longitudinal axis of the eccentric rod (U.S. Pat. Of the Russian Federation No. 2477772, IPC E02F 5/18, publ. 20.03.2013,, bull. No. 8).

However, the disadvantages of the known device is the design complexity, increased burden on many working elements of the device, reducing their lifespan and improve their standing in the industry, the presence of two internal electric actuators associated floating cable with a power source, which further complicates the design and reduces the reliability of the device. When this transverse vibratory oscillations of the working tip of the conical shape, despite the complicated construction of the device is practically not significantly reduce the static resistance in the pipeline, as hollow work the tip of the conical shape when the pipeline rests on the ground, further compacting it. Therefore, for laying of the pipeline is required to attach considerable force, developed with a rope winch, with increased loads on all the working elements of the device.

The technical result of the invention is to simplify the design of the device, improving the reliability and lifetime of its operation, a significant decrease in the magnitude of the required effort puncture and energy for its implementation.

The technical result is achieved in that the device for the trenchless laying of pipelines by way of puncture containing the feed mechanism from the guide frames with horizontal and vertical guide rollers with the possibility of their interaction with the external surface of the underground pipe and cable pulling the winch, rod still attached to the flange mounted on the front in the direction of the puncture end of the laid pipe, installed at the end of the ball support with bearing on it working tip of the conical shape, inside the hollow of the working tip on his plot of cylindrical shape, with its bearing on the flange by means of seals, installed the motor is circular about the axis of rod rotation, the stator of the motor is fixed on the shaft, and the rotor is on the inner surface of the horizontal section of the hollow working tip on the outer surface of the conical section of the working tip mounted threaded surface of the screw type.

The device is presented in figure 1 is a longitudinal section, figure 2 is a top view of the working tip

A device for the trenchless laying of pipelines by way of puncture contains the feed mechanism from the guide frame 1 with 2 horizontal and 3 vertical guide rollers with the possibility of their interaction with the external surface of the underground pipe 4, and the cable winch 5 with traction rope 6, 7 fixed and mobile 8 traverses. On the flange 9, mounted on the front in the direction of 10 puncture the end of the laid pipe 4, the fixed terminal 11 installed on it is the end of the ball support 12 with bearing on it working tip of the hollow conical form 13. Inside the hollow of the working tip 13 on its adjoining pipe section 4 of cylindrical shape, with its bearing on the flange 9 by means of a seal 14, a circular motor relative to the rod axis 11 of rotation. When the stator 15 of the motor is fixed on the shaft 11 and the rotor 16 on the inner surface of the horizontal section of the hollow working tip 13. On the outer surface of the conical section of the working tip 13 is fixed screw surface screw type 17.

The device operates as follows. Included cable pulling winch 5 and a motor mounted on the core 11 of the stator 15 and fixed on the inner surface of the cylindrical section of the working tip 13 of the rotor 16. When this pipeline 4 begins to move in the direction of 10 simultaneous rotation with the rotor 16 of the hollow working tip 13 attached to its outer surface screw surface screw type 17. Due to the interaction of the projections screw surface screw type 17 with the breed derives its destruction around the perimeter of the working tip 13 offset destroyed by the feed screw 17 rocks in the direction opposite to the direction 10 of the promotion of the pipeline 4. This significantly reduces the resistance to advancement of the line is the gadfly 4 in the complete absence of dynamic loads on all structural elements of the device and minimize the drive power of the winch 5, as well as loads on the traction rope 6 fixed 7 and 8 mobile traverses. This significant reduction in effort required for installation of the pipe 4 is provided not only by reducing the mechanical load, but also due to a significant decrease friction of the working tip 13 and the pipeline 4 on the ground by placing around the pipe 4 during its movement in the direction of 10 crushed by the feed screw 17 layers of rock.

Thus, features of the invention provide, in comparison with the device prototype, simplifying the design of the device, improving the reliability and lifetime of its operation, a decrease in the required effort puncture and energy for its implementation.

A device for the trenchless laying of pipelines by way of puncture containing the feed mechanism from the guide frames with horizontal and vertical guide rollers with the possibility of their interaction with the external surface of the underground pipe and cable pulling winches, rod still attached to the flange mounted on the front in the direction of the puncture end of the laid pipe, installed at the end of the ball support with bearing on it working tip of the hollow conical shape, inside the hollow of RA is Otsego tip on his plot of cylindrical shape, with it resting on the flange with seal, a circular motor relative to the rod axis of rotation, characterized in that the stator of the motor is fixed on the shaft, and the rotor is on the inner surface of the horizontal section of the hollow working tip and on the outer surface of the conical section of the working tip mounted threaded surface of the screw type.



 

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