RU116861U1 - STEEL ROPE - Google Patents

Abstract

A steel rope containing strands of steel wires wound on an organic core, characterized in that the organic core contains permanent magnets discretely integrated into its structure.

Description

The invention relates to rope production, and in particular to steel wire rope structures operating as part of systems for which it is necessary to record, store, transmit and read information from a fixed or moving steel rope.

Steel ropes are a complex and responsible type of wire products. They have a large number of types, designs, and differ in cross-sectional shape, both of the rope itself and its elements, as well as in the physicomechanical characteristics of the wires and cores.

A known design of a wire rope (SU 1137126 A, from 30.01.85, bull. No. 4), containing wound in several layers on the core of the wires coated with antifriction polymer material flush with the protrusions of the irregularities of the microrelief of their surface.

This design of the rope with wires coated with antifriction polymer material flush with the protrusions of the irregularities of the microrelief of their surface has enhanced durability, but is not intended for recording, storage, transmission and reading of information from a fixed or moving rope.

Known designs of fiber optic cables manufactured by many companies, for example: Samara Optical Cable Company, Russia; Advanced Technologies Plus, St. Petersburg; Alcatel, France; Fujikura, Japan; General Cable Company, USA; Mohawk / CDT, USA; MOI Elektronik, Germany; Nokia, Finland; Pirelli, Spain; Samsung, South Korea; SEL, Germany.

The central element of the fiber optic cable is the inner core of glass or plastic. The diameter and purity of fiberglass determine the amount of light transmitted to them.

The following features are characteristic of fiber optic cable:

- the presence of a central power element;

- placement in a polymer tube - module;

- the number of optical fibers in one module is from 1 to 12;

- filling the space between the modules with reinforcing elements-cordes of glass or Kevlar threads and a hydrophobic gel;

- coating all of these elements and modules with an intermediate polymer shell;

- external protection of the shell made of polyethylene or metal; there may be two protective shells - metal and polyethylene.

Optical cables of various companies can have additional fastening tapes, anticorrosive and waterproof windings, corrugated metal sheaths, etc.

Fiber optic cables are differentiated by the size of the carrier fiber and the sheath - a layer of glass that reflects light. In addition, they are distinguished by the transmission mode: single-mode and multimode cables, as well as by the used wavelength (850-1550 not) and the used light sources (lasers or LEDs - LED).

Fiber optic is an ordinary glass that transmits electromagnetic energy in the form of infrared light.

The design of fiber optic cables is designed to transmit a signal using modulated light, which propagates through the core of the optical fiber. A signal passing through such a cable does not generate radiation and electromagnetic fields. Due to the low attenuation, using fiber optic cables, it is possible to transmit signals over long distances (exceeding 100 km) without the use of intermediate stations.

However, having many positive properties, they are not designed to transmit traction, they do not tolerate external concentrated and alternating loads, they do not provide recording, storage and reading of information by an external source with a fixed or moving cable.

A known method of measuring the depth of the logging and device for its implementation (Patent RU No. 2060382, ЕВВ 47/00, publ. 05/20/1996). The invention relates to geophysical surveys of wells (in particular, to methods and devices for measuring logging depth) and is intended to measure logging depth. The essence of the invention: the measurement of the depth of the logs is carried out by counting the quantization pulses by depth and their correction, which is carried out by periodically suppressing the quantization pulses that are multiples of the value of p. The device for implementing the method comprises a depth counter with decades, a depth sensor, a correction unit and a correction interval generator.

The disadvantages of the device are the design complexity and low measurement accuracy.

A device is known according to the method for determining the immersion depth of a downhole tool (Patent RU No. 2398106, ЕВВ 47/04, published. 08.27.2010). The invention relates to the field of geophysical exploration of oil and gas wells and can be used to measure the immersion depth of downhole tools. To do this, pre-measure the geophysical cable and apply magnetic marks to the armor of the cable through the same lengths. At the same time, the external coils of the cable armor are counted and their number is memorized from the point of connection of the cable to the downhole tool and then to each subsequent magnetic mark. In the process of geophysical surveys during the descent-rise of the cable, magnetic marks are detected and counted. At the same time, the outer wraps of the cable armor are counted and their number is compared with the corresponding stored values. Use the obtained data to determine the immersion depth of the downhole tool and apply magnetic marks to the armor of the cable.

The disadvantages of the device are the low accuracy of measuring the depth of immersion of the device in the well, the complexity of the design, the presence of magnetic interference in the well.

The closest technical solution to the invention is the construction of a steel rope manufactured by Pfaifer (http://pfeifer-rossia.ru) with a polymer core (DRAKO 8x19-SFC) and with polymer material between the strand layers (DIEPA D1315 CZP, DIEPA P825, DIEPA PZ 371).

The polymer core and the polymer material between the layers of the strands is used to improve the quality and keep the steel cable technical characteristics stable over time.

These designs, like the previous ones, are not intended for recording, storing, transmitting and reading information from a fixed or moving rope.

The invention is aimed at creating a design of a steel rope that provides storage and reading of information from a fixed or moving rope during operation, while maintaining stable technical strength characteristics provided by GOST 3241 "Steel ropes. Technical conditions. "

The information stored, transferred and read from the rope is necessary for its transmission to a distance with subsequent use in operation in control systems in order to increase safety on suspended ropeways, cable cranes, walking excavators, during the construction of various engineering structures, for deep oil drilling and gas wells, cranes, mine installations, hoists, script lifts, ship hoisting devices as load-bearing, traction and cable-stayed cables.

This is achieved by the fact that a steel rope having strands of steel wires wound around an organic core contains permanent magnets discretely integrated into the structure of the organic core.

Figure 1 shows a steel rope containing wound strands 1, twisted from steel wires 2 having an organic core 3, with integrated permanent magnets 4 in the structure of the organic core.

In Fig. 2, section A-A of a steel rope with a permanent magnet 4 integrated into the organic core 3.

The steel wire rope construction contains strands 1 wound around the organic core 3. Permanent magnets 4 are integrated in the structure of the organic core 3. The cross-sectional size of the permanent magnets 4 does not exceed half the diameter of the organic core 3. This parameter is recommended and is structurally related to the possibility of integrating a permanent magnet 4 into the body of the organic core 3. Material of permanent magnets 4 - magnetoplastics. Magnet plastics are permanent magnets consisting of a mixture of magnetic powder (about 95%) and a polymer binder filler (about 5% by weight). The Nd-Fe-B alloy is most often used as the magnetic base, and thermoplastics (for example, polyethylene, epoxy resin, rubber, etc.) are used as the polymer filler. Permanent magnets 4 made of magnetoplastics integrated into the organic core 3 do not affect the flexibility of the steel rope when it is bent on blocks (drums, pulleys, etc.) during operation at various plants.

Main characteristics of magnetoplastics: high manufacturability; lack of fragility; high magnetic characteristics; the possibility of manufacturing any imaginable forms.

The manufacture of the steel rope of the proposed design is as follows. At the first stage, strands 1 are twisted from steel wires 2. Then, an organic core 3 of the required diameter is made. In the manufacture of the organic core 3, permanent magnets 4 are integrated into it, without breaking the structure, at a certain step (at the request of the customer). After manufacturing, the organic core 3 must have a diameter constant over its length within the tolerance. The final step in the manufacture of the steel rope of the proposed design is the stranding of strands 1 around the organic core 3, with integrated permanent magnets along its length.

It should be noted that the cross section and length of the permanent magnets 4 can be varied. Permanent magnets 4 themselves can be integrated into the organic core 3 with different steps along the length of the rope. This feature can be used when programming at the manufacturing stage and when reading information from the rope during its operation.

Thus, the proposed design of a steel rope provides stable technical characteristics for strength, flexibility and at the same time storage, transmission, as well as the ability to read information from a fixed or moving rope during operation.

The use of information stored, transferred and read from a steel rope of the proposed design and its transmission over a distance when used as load-bearing, traction and cable-stayed cables in cable cars, cable cranes, walking excavators, the construction of various engineering structures, for deep drilling of oil and gas wells, cranes, elevators, mine installations, hoists, script lifts, ship lifting devices allows you to create control systems with new consumer properties, in t This number significantly increases the safety of the above installations.

So, for example, the use of the steel rope of the proposed design in the control systems of the above machines allows you to control the slack in the spans, to fix the location of defects formed in the rope itself, to control the installation step of the uncoupled rolling stock, to determine the position of the rolling stock on the track (in the trunk, elevator shaft), depth penetration of wells, distance to the hook suspension, position on the blocks (pulleys) and other characteristics.

The proposed construction of a steel rope opens up new possibilities for using this product in the fields of engineering and technology that have not yet been mastered, namely, it allows carrying information about an object, its properties, quality, and also its position in space and time.

To test the operability of the proposed steel rope design, a computer experiment was carried out by finite element simulation of a steel rope with an organic core, in which a permanent magnet made of magnetoplast is integrated. The simulation results are given in Appendix 1.

Based on computer experiments, it was found that a permanent magnet integrated into the organic core of the steel rope emits a magnetic flux that can be read by a sensor located at a sufficient distance from the surface of the strands of the rope.

To verify the physical performance of the proposed steel rope design, an experiment was conducted with a GOST 2688 steel rope with a diameter of 16.5 mm and a length of 3 meters. The steel rope was braided, the organic core removed. For the purpose of the experiment, an organic core of the required diameter was specially made into which permanent magnets made of magnetoplastic are integrated with a step of 0.3 m. The magnetopolymer was filled with ferrite powder. The bonding material is rubber. A physical experiment confirmed the goals in terms of reading magnetic information from permanent magnets on the surface of a steel rope.

Based on the foregoing and taking into account the patent information search, we believe that the Steel Rope proposed by us can be recognized as an invention and protected by a patent.

Claims (1)

A steel rope containing strands of steel wires wound around an organic core, characterized in that the organic core contains permanent magnets discretely integrated into its structure.