CN214495458U

CN214495458U - Simple and reliable wiping line ice melting device

Info

Publication number: CN214495458U
Application number: CN202022995202.8U
Authority: CN
Inventors: 丁海洋; 刘永刚; 孔书杰
Original assignee: Henan Weihua Heavy Machinery Co Ltd
Current assignee: Henan Weihua Heavy Machinery Co Ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-10-26
Anticipated expiration: 2030-12-14

Abstract

A simple and reliable trolley line ice melting device comprises a trolley line and an ice melting device which is connected with a trolley line power supply circuit and heats the trolley line; the ice melting device comprises an ice melting controller which is connected with the head end of the sliding contact line and provides heating alternating current, and a sliding contact line short-circuit switch which is connected with the tail end of the sliding contact line, wherein the on and off of the sliding contact line short-circuit switch are consistent with the working condition of the ice melting controller; the ice melting controller adopts a multi-station split type arc welding transformer. The utility model discloses compact structure, the low noise effectively fills jack-up trade 380V low pressure circuit ice-melt technique blank, effectively solves the wiping line problem of freezing winter, avoids the difficult problem of unable normal use of hoisting equipment under low temperature environment.

Description

Simple and reliable wiping line ice melting device

Technical Field

The utility model relates to a supporting electrical control equipment of hoist especially relates to a simple and reliable wiping line ice-melt device.

Background

The trolley line is an important component of the power supply side of the crane, and the trolley line is often frozen due to the fact that the temperature of the crane in some application environments is lower than 0 ℃, so that normal use of hoisting equipment is affected. Although the AC and DC deicing technology is well applied to the field of high-voltage power transmission, the technology cannot be applied to the field of cranes with the characteristic of low voltage due to higher cost.

Although the sliding contact line ice melting device based on the step-down transformer technology can effectively solve the problem, the step-down transformer serving as a core element has the defect of large size due to low working frequency (50Hz), and is easy to cause users to have problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, a simple and reliable sliding contact line ice melting device is provided.

The purpose of the utility model is realized with the following mode:

a simple and reliable trolley line ice melting device comprises a trolley line and an ice melting device which is connected with a trolley line power supply circuit and heats the trolley line; the ice melting device comprises an ice melting controller which is connected with the head end of the sliding contact line and provides heating alternating current, and a sliding contact line short-circuit switch which is connected with the tail end of the sliding contact line, wherein the on and off of the sliding contact line short-circuit switch are consistent with the working condition of the ice melting controller; the ice melting controller adopts a multi-station split type arc welding transformer.

And the input end of the ice melting controller is connected with a power supply circuit through an ice melting controller power switch.

And the sliding contact line short-circuit switch is electrically interlocked with a power switch of the ice melting controller.

And a power supply switch is arranged on a power supply line of the sliding contact line, and the power supply switch is electrically interlocked with a power switch of the ice melting controller.

The ice melting controller is provided with a single path of 380Vac/3Ph/50Hz input voltage and four paths of output voltage which is as low as 30Vac/3Ph/50 Hz.

The ice melting controller, the sliding contact line short-circuit switch and the ice melting controller power switch are arranged in the cabinet body.

Compared with the prior art, the utility model discloses compact structure, the low noise effectively fills jack-up trade 380V low pressure circuit ice-melt technique blank, effectively solves the wiping line problem of freezing winter, avoids the difficult problem of unable normal use of hoisting equipment under low temperature environment.

Drawings

Fig. 1 is a schematic connection diagram of the simple and reliable trolley line ice melting device of the present invention.

Fig. 2 is a schematic diagram of the ice melting controller of the present invention.

Where 1 is a trolley line.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same technical meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and it should be further understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of the stated features, steps, operations, devices, components, and/or combinations thereof.

In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only relational terms determined for convenience of describing structural relationships of the respective parts or elements of the present invention, and are not intended to refer to any part or element of the present invention, and are not to be construed as limiting the present invention.

In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and may be fixedly connected, or may be integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.

A simple and reliable trolley line ice melting device comprises a trolley line and an ice melting device which is connected with a trolley line power supply circuit and heats the trolley line; the ice melting device comprises an ice melting controller U1 which is connected with the head end of the sliding contact line and provides heating alternating current, and a sliding contact line short-circuit switch K3 which is connected with the tail end of the sliding contact line, wherein the on-off state of the sliding contact line short-circuit switch is consistent with the working state of the ice melting controller.

And a power switch K2 of the ice melting controller is arranged on the input end of the ice melting controller U1 and a power supply circuit.

The trolley line short-circuit switch K3 is electrically interlocked with the ice-melting controller power switch K2.

And a power supply switch K1 is arranged on a power supply circuit of the sliding contact line, and the power supply switch K1 is electrically interlocked with a power switch K2 of the ice melting controller.

The ice melting controller U1 has a single path of 380Vac/3Ph/50Hz input voltage and four paths of output voltage as low as 30Vac/3Ph/50 Hz.

The ice melting controller U1 adopts a multi-station split type arc welding transformer.

The ice melting controller U1, the trolley line short circuit switch K3 and the ice melting controller power switch K2 are arranged in the cabinet body.

The utility model discloses a schematic diagram of wiping line ice-melt device is shown in fig. 1, and ice-melt device switch-on is equivalent to the load short circuit in the twinkling of an eye, and voltage can draw low in the twinkling of an eye, and ordinary transformer is difficult to bear, therefore ice-melt device inside ice-melt transformer adopts the split type arc-welding transformer of multistation in fig. 1, see fig. 2, input voltage 380Vac/3Ph 50Hz, output voltage 30Vac/3Ph 50Hz is left and right sides.

The ice melting controller U1, the trolley line short-circuit switch K3 and the ice melting controller power switch K2 are arranged in the cabinet body, the K1 is an original power supply switch of a power supply line, the K2 is a power supply switch of the ice melting controller U1, and the power supply switch K1 is interlocked with the ice melting controller power switch K2. K3 is a trolley line short circuit switch, and is interlocked with a power switch K2 of the ice melting controller, namely K2 and K3 are simultaneously switched off or switched on. When the crane does not work, the power supply switch K1 is cut off, the power switch K2 of the ice melting controller and the trolley line short-circuit switch K3 are closed, and the ice melting device starts to work. And after ice melting is finished, the power supply switch K1 is switched on, the power supply switch K2 of the ice melting controller and the trolley line short-circuit switch K3 are switched on, and the crane obtains normal power supply.

The high frequency, simplicity and reliability greatly reduce the volume of the main transformer and the volume of the whole ice melting device, obviously reduce the cost of the device, and simultaneously, the high frequency can also effectively reduce the noise of the device.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. Where combinations of features are mutually inconsistent or impractical, such combinations should not be considered as being absent and not within the scope of the claimed invention. Also, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the spirit of the principles of the invention.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.

Claims

1. A simple and reliable wiping line ice-melt device which is characterized in that: the ice melting device is connected with a power supply line of the sliding contact line and used for heating the sliding contact line; the ice melting device comprises an ice melting controller (U1) which is connected with the head end of the sliding contact line and provides heating alternating current, and a sliding contact line short-circuit switch (K3) which is connected with the tail end of the sliding contact line, wherein the on-off state of the sliding contact line short-circuit switch is consistent with the working state of the ice melting controller; the ice melting controller (U1) adopts a multi-station split type arc welding transformer.

2. A simple and reliable trolley line de-icing apparatus as in claim 1, characterized by: the input end of the ice melting controller (U1) is connected with a power supply circuit through an ice melting controller power switch (K2).

3. A simple and reliable trolley line de-icing apparatus as in claim 1, characterized by: the trolley line short-circuit switch (K3) is electrically interlocked with the ice melting controller power switch (K2).

4. A simple and reliable trolley line de-icing apparatus as in claim 1, characterized by: and a power supply switch (K1) is arranged on a power supply circuit of the sliding contact line, and the power supply switch (K1) is electrically interlocked with a power switch (K2) of the ice melting controller.

5. A simple and reliable trolley line de-icing apparatus as in claim 1, characterized by: the ice melting controller (U1) is provided with a single path of 380Vac/3Ph/50Hz input voltage and four paths of output voltage which is as low as 30Vac/3Ph/50 Hz.

6. A simple and reliable trolley line de-icing apparatus as in claim 1, characterized by: the ice melting controller (U1), the trolley line short circuit switch (K3) and the ice melting controller power switch (K2) are arranged in the cabinet body.