KR101067663B1 - Apparatus for controlling and operating digitally hoist - Google Patents

Abstract

The present invention relates to a digitally controlled hoist apparatus.
The digital control drive hoist apparatus according to the present invention receives the work command data of the user through the receiving unit 20, supplies the driving power of the hoist through the control unit 30, and the control unit 30 according to the work command data. The drive motor 50 is driven through the switch unit 320 of the drive wheel, and the hoist 60 cross-drives or the hooks mounted on the hoist 60 are lifted and lowered by the drive motor 50. It is a movement hoist device, the control unit 30, the power supply unit 310; A switch unit 320 installed between the power supply unit 310 and the driving motor 50 to switch power supplied to the driving motor 50; And a motor control unit 331 installed between the switch unit 320 and the driving motor 50 to control the driving motor 50, and a transverse control unit 332 for controlling the lateral driving of the hoist 60. And a drive control unit 330 including a hoisting control unit 333 for controlling the hoisting and hoisting operation of the hook. The power supply unit 310, the switch unit 320, and the drive control unit. 330 is implemented on a single printed circuited board (PCB) and can be exchanged in one unit form, and the switch unit 320 is a contactless state through a silicon controlled rectifier 321, which is a semiconductor switching element. Digitally driven, the silicon control rectifier 321 is provided with a plurality, connected in parallel to the power supply 310, the speed sensing unit 510 for detecting the speed of the drive motor 50 is further Is provided, of the detected drive motor 50 Speed information is input to the control unit 30, the current value sensing unit 520 for monitoring the current value change through at least one current transformer coupled to the drive motor 50 is further provided, the monitored Information about the current value of the current transformer is input to the controller 30, and the motor controller 331 may control the drive motor 50 in three phase directions through the silicon controlled rectifier, and the drive The power consumed when the motor 50 is lowered can be reduced, and the PCB is embedded in the box-shaped control unit 30, and the receiving unit 20, the control unit 30, the brake 40, and the motor (50), the display unit for displaying the operation of the speed detection unit 510 and the current value detection unit 520, and further comprises a data input unit for executing the program.

Description

Digital Control Hoist Device {APPARATUS FOR CONTROLLING AND OPERATING DIGITALLY HOIST}

The present invention relates to a digitally controlled hoist apparatus.

With the recent development of the industry, the hoist or crane driven by power is mainly used for the transport of heavy products or materials in the heavy industrial sectors such as steel, shipbuilding, ports, and construction.

Among them, hoists are mainly used for the transfer of relatively heavy and light products.

The hoist which is most used among heavy material handling equipment is a facility used to hang heavy materials in a workplace and transport them to a predetermined place and location by a monorail, etc. , Electric hoists using winding induction motors, and telphers carrying ores.

Here, simply referred to as hoist, generally refers to electric hoist.

It is fixed, but it is usually paired with a trolley to travel on the flange below the I-shaped rail.

The main operation of hoist is hoisting to move the product up and down, left. It is divided into traversing to the right and traveling of the hoist itself.

The conventional hoist driving device that performs such an operation performs three operations such as hoisting, traversing, and traveling under the control of the traveling control panel and the hoist panel after the main power is supplied. In parallel, move the desired item to the desired position.

However, such a conventional hoist driving apparatus has a main power switch, each driving power circuit and a control driving apparatus manufactured and sold separately, respectively, and thus have inconveniences and risks for installation and maintenance workers.

In addition, the power supply circuit is composed of a relay-type sequence contact point circuit, which is frequently sintered by frequent switching, resulting in frequent maintenance and low reliability, and the control parameters and software depend on imports. In other words, each device is composed of independent devices.

Since the panels constituting each of the conventional hoist apparatuses are loosened and performed by cables and bolt nuts during assembly and disassembly and maintenance, a large amount of work time is required, thereby increasing labor costs. In addition, free A / S was generated by the user's arbitrary modification due to the lack of open drawings and electrical knowledge, and thus, there was a problem that the company's sales were greatly affected.

FIG. 1A is a view showing a switch unit of a hoist device of a direct drive system according to the prior art, and FIG. 1B is a photograph showing a state in which a coil of a motor is damaged when the hoist is driven by FIG. 1A. In this case, Figure 1b is the contact point of the switch unit was used in the field for about one week, the sample is the motor 33KW burned out.

As shown in Figures 1a and 1b, the conventional hoist device has been operated by the direct-input method using the contact point switch portion (S) in front of the drive motor (SM1), when the simultaneous contact is made a problem However, if one of the contacts is burned out first, the motor takes single-phase power during inching work. Therefore, even if it is 100/1 second during inching work, single phase effect occurs for 0.1 second after 100 repetitions per minute. The instantaneous voltage generated at the time becomes a bad condition for the load for the purpose of production. In addition, there is a problem that the motor is generated due to frequent ON / OFF, and the motor is damaged when the protection device is released by overheating the motor.

Therefore, in order to solve the above problems, the present invention is to install a silicon-controlled rectifier between the drive motor and the power supply of the hoist to control in a non-contact digital manner, thereby reducing the amount of power consumed when the drive motor is lowered. It is an object of the present invention to provide a digitally controlled hoist device capable of reducing the stress of other power equipment due to the instantaneous voltage generated at this time.

In addition, an object of the present invention is to provide a digital control drive hoist device that can reduce the direct cost generated through frequent after-sales service of the manufacturer by providing a control panel having a contactless control method. .

In addition, the present invention, by using a contactless control method, protects the motor, prevents arbitrary operation, can prevent the motor deterioration, and further reduce the current during the driving of the hoist to reduce the power saving effect It is an object of the present invention to provide a digitally controllable hoist device.

The digital control drive hoist apparatus according to the present invention receives the work command data of the user through the receiving unit 20, supplies the driving power of the hoist through the control unit 30, and the control unit 30 according to the work command data. The drive motor 50 is driven through the switch unit 320 of the drive wheel, and the hoist 60 cross-drives or the hooks mounted on the hoist 60 are lifted and lowered by the drive motor 50. It is a movement hoist device, the control unit 30, the power supply unit 310; A switch unit 320 installed between the power supply unit 310 and the driving motor 50 to switch power supplied to the driving motor 50; And a motor control unit 331 installed between the switch unit 320 and the driving motor 50 to control the driving motor 50, and a transverse control unit 332 for controlling the lateral driving of the hoist 60. And a drive control unit 330 including a hoisting control unit 333 for controlling the hoisting and hoisting operation of the hook. The power supply unit 310, the switch unit 320, and the drive control unit. 330 is implemented on a single printed circuited board (PCB) and can be exchanged in one unit form, and the switch unit 320 is a contactless state through a silicon controlled rectifier 321, which is a semiconductor switching element. Digitally driven, the silicon control rectifier 321 is provided with a plurality, connected in parallel to the power supply 310, the speed sensing unit 510 for detecting the speed of the drive motor 50 is further Is provided, of the detected drive motor 50 Speed information is input to the control unit 30, the current value sensing unit 520 for monitoring the current value change through at least one current transformer coupled to the drive motor 50 is further provided, the monitored Information about the current value of the current transformer is input to the controller 30, and the motor controller 331 may control the drive motor 50 in three phase directions through the silicon controlled rectifier, and the drive The power consumed when the motor 50 is lowered can be reduced, and the PCB is embedded in the box-shaped control unit 30, and the receiving unit 20, the control unit 30, the brake 40, and the motor (50), the display unit for displaying the operation of the speed detection unit 510 and the current value detection unit 520, and further comprises a data input unit for executing the program.

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The outer surface of the control unit 30 is a functional oil mixed with 60-70% by weight of evening primrose oil, 5-15% by weight chamomile German oil, 20-30% by weight of Karenzula oil is applied in a spray method, the control unit (30) and the functional oil injection nozzle is characterized in that it comprises a coating layer 32 is applied by spraying for about 5 to 15 seconds on one surface of the control unit 30 of 1㎡ while maintaining a distance of 40 ~ 60cm.

As described above, according to the present invention, since the silicon-controlled rectifier is installed between the driving motor and the power supply of the hoist and controlled in a non-contact digital manner, the amount of power consumed when the driving motor is lowered can be reduced. This can reduce the stress of other power plants due to the instantaneous voltage.

In addition, according to the present invention, since the control panel having a contactless control method is provided, the direct cost generated through frequent after-sales service of the manufacturer can be reduced.

In addition, according to the present invention, since the contactless control method is used, it is possible to protect the motor, to prevent arbitrary operation, to prevent the motor from deteriorating, and to reduce the electric current during the lowering operation of the hoist, thereby reducing the power saving effect. Visible digitally controlled hoist device can be provided.

Specific matters other than the problem to be solved, the problem solving means, and the effects of the present invention as described above are included in the following embodiments and the drawings. Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. Like reference numerals refer to like elements throughout.

Figure 1a is a view showing a switch unit of the hoist device of the direct drive system according to the prior art.
1B is a photograph showing a state in which a coil of a motor is damaged when the hoist is driven by FIG. 1A.
Figure 2 is a block diagram briefly showing the configuration of a digitally controlled hoist apparatus according to the present invention.
3 is a diagram illustrating a configuration of a switch unit of FIG. 2.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the accompanying drawings are only described in order to more easily disclose the contents of the present invention, but the scope of the present invention is not limited to the scope of the accompanying drawings that will be readily available to those of ordinary skill in the art. You will know.

FIG. 2 is a block diagram briefly showing the configuration of a digitally controlled hoist apparatus according to the present invention, and FIG. On the other hand, in Figures 2 to 3, there are not shown components that are not directly related to the present invention and may confuse or confuse the gist of the present invention, those skilled in the art through the description only the problem and technical It will be clearly understood the technical scope and spirit of the present invention, including the solution.

First, to briefly describe the entire system equipped with a digital control drive hoist apparatus according to the present invention, in a state in which a boom for performing a hoisting operation is installed on vertically and horizontally formed pillars and columns, the digital control drive hoist By using the driving motor of the device, the hoisting, driving, traversing and moving of the boom are performed. At this time, the drive motor is driven so that the hoist transversely drives by the power supplied by the power supply to be described later or the hook mounted on the hoist is driven up and down, it may be configured in plurality.

As shown in Figures 2 to 3, the digital control drive hoist apparatus according to the present invention receives the user's work command data through the receiving unit 20, and supplies the driving power of the hoist through the control unit 30 The motor 50 is driven through the switch unit 320 of the controller 30 according to the work command data, and the hoist 60 cross-drives or the hoist 60 is driven by the motor 50. ) Is a hoist device for hoisting and hoisting.

Here, the control unit 30, the power supply unit 310; A switch unit 320 installed between the power supply unit 310 and the driving motor 50 to switch power supplied to the driving motor 50; And a motor control unit 331 installed between the switch unit 320 and the driving motor 50 to control the driving motor 50, and a transverse control unit 332 for controlling the lateral driving of the hoist 60. And a drive controller 330 including a hoisting control unit 333 for controlling the hoisting and hoisting operation of the hook.

In this case, the power supply unit 310, the switch unit 320 and the drive control unit 330 is implemented on one printed circuited board (PCB). In the digitally controlled hoist device, the power supply unit 310, the switch unit 320, and the control unit 330 are implemented on a printed circuited board (PCB), thereby providing a mass of about 1/2 of the size of a conventional control panel. Production is possible, and there is an advantage that the case of A / S by an arbitrary operation may not occur.

In addition, the PCB 31 is embedded in the box-shaped control unit 30. Here, the control unit 30 is made of a panel. At this time, the outer surface of the control unit 30 is applied to the surface functional oil mixed with 60-70% by weight of evening primrose oil, 5-15% by weight of chamomile German oil, 20-30% by weight of Karenzula oil in a spray method. However, the control unit 30 and the functional oil injection nozzle includes a coating layer 32 applied by spraying for about 5 to 15 seconds on one surface of the control unit 30 of 1 m 2 while maintaining a distance of 40 to 60 cm. This is to prevent the manager's body disease when the manager checks the PCB installed in the control unit 30.

Evening primrose oil, chamomile german oil and Karenzula oil applied to the control unit 30 is used as a functional oil after mixing to have a specific condition to improve skin diseases such as atopic dermatitis. Evening primrose oil, also known as evening primrose oil, contains abundant gamma linolenic acid and vitamin E, which are known to have anti-cancer effects, and have a good therapeutic effect on eczema and dermatitis. . This oil, when taken or in contact with the skin, is effective in improving the inflammation of the skin, such as eczema and psoriasis, and also helps to improve allergic conditions and balance hormones. The evening primrose oil is mixed with functional oils of about 60-70% by weight, when the mixing ratio of the evening primrose oil is less than 60-70% by weight, the above-mentioned effect is reduced, so the effect is insignificant. Evening primrose oil has the function of preventing heart disease and lowering blood pressure, so when the mixing ratio of evening primrose oil exceeds 70% by weight, it is not suitable for patients with hypotension. Chamomile German oil, which contains large amounts of monoterpine and sesquiterpine, usually contains more than 7% (2.16-35.59%) of chamazulene, which has high anti-inflammatory and anti-allergic effects. It is known that matricarin is converted to chamanulene in the process of extracting oil by steam distillation. The α-bisabolol component in chamomile germany oil has been found in mice to have anti-inflammatory, anti-inflammatory and anti-inflammatory effects on arthritis. Excellent in anxiety Such chamomile germane oil is mixed with functional oils by about 5-15% by weight, but when the mixing ratio of chamomile germane oil is less than 5% by weight, the above-mentioned effect is lowered, so the effect is insignificant. Chamomile German oil has an excellent neuro-stable effect, so if the mixing ratio of chamomile German oil exceeds 15% by weight, the nervous system is excessively relaxed, which may cause trouble to concentrate on a specific task. Calendula oil contains vitamins A, B, D and vitamin E. It is good for the treatment of skin diseases, especially eczema and dryness, and also promotes anti-inflammatory, anti-convulsion and bile secretion. It is known. Cream made with Karenzula oil is used to protect rough hands with housewives and eczema.It can be applied to the skin with varicose veins.It can also be applied to the head or to the feet with severe itching for dandruff treatment. Such Karenzula oil is mixed in the functional oil 20-30% by weight, but when the mixing ratio of Karenzula oil is less than 20% by weight, the above-mentioned efficacy is reduced, the effect is insignificant. Karenzula oil contains ketones. Therefore, if the mixing ratio of the Karenzula oil exceeds 30% by weight it may be harmful due to the excess of the ketone component contained therein. The chemical structure of the ketone component is a double bond of oxygen atoms to the center carbon. Oils containing excessive amounts of ketones should always be used when used. Do not use quantitatively because it may cause neurotoxicity in large amounts and cause side effects in continuous use. If used only, this ingredient can be used to strengthen and regenerate nerve tissue. It also acts as a powerful antitussive. Most of these oils can be used for chronic bronchial diseases, coughing from phlegm, and dyspnea.

As described above, the functional oil is applied by spraying the control unit 30 and the functional oil jet nozzle on one surface of the 1 m 2 check box for 5 to 15 seconds while maintaining a 40 to 60 cm gap. If the distance between the control part 30 and the functional oil injection nozzle is less than 40 cm, the functional oil is concentrated on one part of the check box, and the phenomenon of partial breathability of the control part 30 occurs. When the distance between the control unit 30 and the functional oil injection nozzle exceeds 60 cm, the amount of scattering to the surroundings during the injection of the functional oil increases by that amount, which wastes expensive functional oil.

In addition, when the injection time of the functional oil sprayed on one surface of the control unit 30 of 1 m 2 is less than 5 seconds, it is difficult to apply a sufficient amount of functional oil to the control unit 30, and the effect thereof is insignificant. When the injection time of the functional oil sprayed on one side of the 1㎡ check box exceeds 15 seconds, the effect is not greatly increased as compared to the case of spraying about 5 to 15 seconds, while waste of the functional oil is unnecessary. do.

In addition, as shown in FIG. 3, the switch 320 is driven in a contactless digital manner through a silicon controlled rectifier 321, which is a semiconductor switching element. Here, the silicon controlled rectifier 321 is a contactless semiconductor device, also called a thyristor. The silicon controlled rectifier 321 is composed of three terminals: an anode, a cathode, and a gate. When a signal is applied to the gate, a reverse current is applied to the main circuit without supplying a continuous gate current. In other words, it maintains the energized state until the current falls below the holding current. On the other hand, the silicon controlled rectifier 321 has a pnpn four-layer structure, can withstand voltages of 6,000V or more, can control currents of 3,000A or more, and control motors and ultrasonics at high power, such as high voltage direct current (HVDC) transmission. This device can be applied to a variety of applications, such as high frequency. Types include Light Activated Thyristor (LASCR), Reverse Conducting Thyristor (RCT), Gate Assisted Turn-off Thyristor (CATT), Gate Turn-off Thyristor (GTO), Asymmetric Thyristor (ASCR), MOS Controlled Thyristor (MCT), etc. There are many forms. In particular, MCT is considered to be the most ideal power semiconductor device controlled by a MOS gate. The silicon controlled rectifier 321 as described above may be provided in plurality. In addition, the plurality of silicon control rectifiers 321 may be connected to the power supply unit 310 in parallel.

As described above, since the digital control drive hoist device can be designed to be controlled in two phases with respect to the driving motor 50 by using a silicon controlled rectifier, maintenance can be significantly reduced as compared to the conventional one. A / S can be simplified by changing to one unit for maintenance by implementing with one PCB. This also simplifies the weight and volume of the hoist device itself.

In addition, the digital control drive hoist device further comprises a speed detecting unit 510 for detecting the speed of the drive motor 50, the drive control unit 330 to provide information about the speed of the detected drive motor (50) By inputting to allow the control unit 30 to control the speed of the drive motor 50.

In addition, the digital control drive hoist device further includes a current value sensing unit 520 for monitoring a current value change through at least one current transformer coupled to the drive motor 50, to the current value of the monitored current transformer. Information about the driving controller 330 may be input to allow the driving controller 330 to monitor the overload of the driving motor 50.

On the other hand, although not shown, the display unit and the data input unit for displaying the operation of the respective components of the digital control drive hoist device, and execute a predetermined program may be connected to the control unit 30.

In addition, the drive motor 50 may be capable of position control, overload control, and collision prevention functions required when the drive motor 50 is started by the silicon controlled rectifier 321 and the DC magnetic brake 40.

Therefore, according to the above-described digital control drive hoist device, since the silicon control rectifier is installed between the drive motor of the hoist and the power supply unit and controlled in a non-contact digital manner, the amount of power consumed when the drive motor is lowered can be reduced. In this case, the stress of other power equipment due to the instantaneous voltage generated at this time can be reduced. In addition, according to the digital control driven hoist device, since the control panel has a contactless control method, the direct cost incurred through frequent after-sales service of the manufacturer can be reduced, and the contactless control method is used. As a result, it is possible to provide a digitally controlled hoist device that protects the motor, prevents arbitrary operation, prevents deterioration of the motor, and furthermore, reduces the current when the hoist is driven in descending direction, thereby saving power. .

As described above, it is to be understood that the technical structure of the present invention can be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

Therefore, the exemplary embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims rather than the detailed description, and the meaning and scope of the claims and their All changes or modifications derived from equivalent concepts should be construed as being included in the scope of the present invention.

10: transmitter 20: receiver
30: control unit 40: brake
50: drive motor 60: hoist
310: power supply unit 320: switch unit
330: drive control unit 331: motor control unit
332: traverse control unit 333: hoisting control unit
510: speed detection unit 520: current value detection unit

Claims (5)

Receives the user's work command data through the receiving unit 20, supplies the driving power of the hoist through the control unit 30, the drive motor through the switch unit 320 of the control unit 30 in accordance with the work command data And a hoist device for driving the hoist 60 by the hoist 60 or the hook mounted on the hoist 60 by driving the drive motor 50.
The control unit 30,
A power supply unit 310; A switch unit 320 installed between the power supply unit 310 and the driving motor 50 to switch power supplied to the driving motor 50; And a motor control unit 331 installed between the switch unit 320 and the driving motor 50 to control the driving motor 50, and a transverse control unit 332 for controlling the lateral driving of the hoist 60. And a driving control unit 330 including a lifting and lowering control unit 333 for controlling the lifting and lowering operation of the hook.
The power supply unit 310, the switch unit 320 and the drive control unit 330 is implemented in one PCB (Printed Circuited Board) is interchangeable in the form of a unit,
The switch 320 is driven in a contactless digital manner through a silicon controlled rectifier 321 which is a semiconductor switching element.
The silicon controlled rectifier 321 is provided in plurality, are connected in parallel to the power supply unit 310,
A speed detecting unit 510 is further provided to detect the speed of the driving motor 50, so that information about the detected speed of the driving motor 50 is input to the controller 30.
A current value sensing unit 520 is further provided to monitor a change in current value through at least one current transformer coupled to the drive motor 50, so that information about the current value of the monitored current transformer is transferred to the controller 30. Is entered,
The motor controller 331 may control the driving motor 50 in three phase directions through the silicon controlled rectifier, and may reduce power consumed when the driving motor 50 descends.
The PCB is embedded in the box-shaped control unit 30,
A display unit for displaying the operation of the receiving unit 20, the control unit 30, the brake 40, the motor 50, the speed detecting unit 510 and the current value detecting unit 520, and a data input unit for executing the program Digital control drive hoist device comprising a. delete delete delete The method of claim 1,
The outer surface of the control unit 30 is a functional oil mixed with 60-70% by weight of evening primrose oil, 5-15% by weight chamomile German oil, 20-30% by weight of Karenzula oil is applied in a spray method, the control unit 30 and the functional oil jet nozzle, the coating layer 32 is applied by spraying for about 5 to 15 seconds to one surface of the control unit 30 of 1㎡ while maintaining the interval of 40 ~ 60cm Controlled Hoist Device.

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