Steel wire rope oil sludge electromagnetic removal device

Abstract

The invention relates to the technical field of elevators or other steel wire rope forced driving equipment, in particular to a steel wire rope oil sludge electromagnetic removal device. The device is mainly technically characterized in that an electromagnetic induction heating coil is wound on a steel wire rope, a certain distance is kept, magnetic induction lines of the steel wire rope in operation are cut to instantly generate heat for heating so as to prevent oil sludge from being generated, a mounting bracket is fixed beside the elevator steel wire rope through a fixing screw, and a certain gap is kept between the electromagnetic coil and the steel wire rope. The electromagnetic coil is fixed on the installation support and connected with the controller, the controller is connected with a power source through a wire, starting and stopping of the coil are controlled through the temperature switch and a signal line for fast running detection, the steel wire rope is heated to the needed temperature, and therefore the effects of removing and preventing oil sludge are achieved.

Description

[0001] Technical field: The present invention relates to the field of elevator technology, and in particular to a wire rope degreasing device. Background technology: Wire ropes are often used in some lifting equipment or transportation equipment. Elevators are an indispensable product in today's life. Currently, the main transmission method is wire rope traction. Due to long-term exposure to complex environments, wire ropes will rust and break when dry. Moisture is a characteristic of wire ropes. However, this characteristic will cause the wire rope to be squeezed during operation, and the internal oil will gradually seep out. Due to some environmental dust, the oil on the surface of the wire rope will stick to the dust and turn into sludge. After long-term continuous operation, the sludge on the surface of the wire rope will accumulate more and more. In relatively low temperatures, the sludge will form hard lumps on the sheaves and wire ropes, resulting in reduced comfort or people being trapped. This brings great difficulties to frequent inspections and maintenance in the later stage. It is difficult to detect hidden dangers such as rust and broken wires. It will also damage the wire rope pad safety clamp and destroy the friction coefficient of the drive wheel, affecting the reliability of devices such as the elevator and the speed limiter. At present, the cleaning of sludge on elevator wire rope mainly adopts brush cleaning or manual cleaning. The existing cleaning methods have the following main problems: the brush cleaning effect is poor and the brush life is short; manual cleaning requires maintenance personnel to be time-consuming and labor-intensive, low efficiency and incomplete cleaning; cleaning the counterweight or the anti-roping pulley at the bottom of the car also poses a great safety hazard. The existing technology is post-cleaning instead of pre-prevention.

[0002] Summary of the invention: The purpose of the present invention is to solve the above-mentioned problems in the prior art and to provide a device that can prevent sludge in advance and remove it afterwards, so as to avoid inadequate cleaning and reduce the safety risks of maintenance personnel to ensure the safe operation of elevator equipment.

[0003] In order to solve the above-mentioned technical problem of wire rope oil sludge, the present invention provides the following technical solutions:

[0004] The technology employed is an electromagnetic heating device, which includes an electromagnetic induction heater, a temperature monitoring switch, a power supply, a control system, an elevator express detection signal, and a mounting bracket. The electromagnetic induction heating coil, wrapped around the wire rope, cuts the magnetic flux lines of the running wire rope, generating instant heat. The control unit activates the electromagnetic heating device only when both the elevator express signal and the ambient temperature detection temperature are below 5°C. The controller controls the wire rope heating temperature between 30°C and 40°C, with a rated upper limit of 60°C, to maintain a suitable operating temperature for the wire rope and prevent sludge from condensing or forming on the wire rope.

[0005] Beneficial effects

[0006] It is composed of five logic circuit elements in series.

[0007] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. The principle of electromagnetic induction heating is to change the magnetic field at a high frequency in a short period of time, so that the electromagnetic heating coil and the wire rope cut through the magnetic field and generate heat instantly, heating the wire rope to the required temperature. The heater controller can set the power according to the ladder speed to accurately control the heating temperature, thereby achieving the effect of removing and preventing sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention will be further described below with reference to the accompanying drawings and examples.

[0009] Figure 1 The schematic diagram of the structure of the present invention;

[0010] In the figure: 1. Wire rope; 2. Electromagnetic coil; 3. Controller; 4. Mounting bracket; 5. Temperature monitoring; 6. Express detection;

[0011] The present invention is combined with practical applications below to clearly and completely describe the technical solutions in the examples. The examples are only part of the present invention, not all of the examples. Based on the examples in the present invention, all implementation cases obtained in this field without creative work fall within the scope of protection of the present invention.

Claims

1. An electromagnetic wire rope sludge removal device, mainly used for elevator wire ropes or other forced drive equipment with wire ropes. Its main technical feature is that the electromagnetic induction heating coil is wrapped around the wire rope at a certain distance, cutting the magnetic flux lines of the running wire rope to instantly generate heat to prevent the formation of sludge. Its characteristics are: The mounting bracket (4), fixing screws (7), controller (3), the electromagnetic coil (2), temperature switch (5), express detection (6), power supply (8), the mounting bracket (4) is fixed beside the elevator wire rope through the fixing screws (7), the electromagnetic coil (2) and the wire rope (1) maintain a certain gap, the electromagnetic coil (2) is fixed on the mounting bracket (4), and is connected to the controller (3).

2. The electromagnetic removal device for oily sludge on a steel wire rope according to claim 1, characterized in that: The mounting bracket (4) is fixed beside the elevator wire rope by two fixing screws (7).

3. The electromagnetic removal device for oily sludge on a steel wire rope according to claim 2, characterized in that: The electromagnetic coil (2) maintains a certain gap with the steel wire rope (1) and is wrapped around the steel wire rope (1).

4. The electromagnetic removal device for oily sludge on a steel wire rope according to claim 3, characterized in that: The electromagnetic coil (2) is fixed on a mounting bracket (4) and connected to a controller (3).

5. The electromagnetic removal device for oily sludge on a steel wire rope according to claim 4, characterized in that: The controller (3) is connected to a power supply (8) via a wire, and controls the start and stop of the coil via a signal line of a temperature switch (5) and a fast detection (6).

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