CN210855007U - Crown block driving system - Google Patents

Abstract

The application discloses overhead traveling crane actuating system compares with prior art, includes: an AC motor module; the frequency converter is connected with the alternating current motor module; the PLC control system is connected with the frequency converter; the cart position sensing module is connected with the PLC control system; and the coding cable is arranged on a cart walking track. The application provides a crown block driving system, which adopts an alternating current motor module; compared with the prior direct current system, the alternating current motor which is convenient, energy-saving and economical can be selected without manufacturing a complex, expensive and troublesome-to-maintain direct current motor, so that the maintenance is more convenient and the cost is saved compared with the prior art.

Description

Crown block driving system

Technical Field

The application relates to the technical field of industrial production and logistics equipment, in particular to a crown block driving system.

Background

With the increasing global trade volume, the throughput requirements of ports are higher and higher. Under the prerequisite of harbour not expanding, improve the operating efficiency of harbour gantry crane overhead traveling crane, can improve harbour gantry crane's work efficiency greatly.

The overhead traveling crane is indispensable equipment in industrial production and commodity circulation, can show improvement production and transportation efficiency, and the overhead traveling crane is at the operation in-process, and the range of hanging thing wobbling must not be greater than the design value, and with the development of scientific and technological and the needs of production commodity circulation, we have higher requirement to the anti-shake nature of overhead traveling crane hanging thing.

The crown block driving system in the prior art has the defects of complex manufacture, high price and troublesome maintenance.

Therefore, how to provide a crown block driving system, which is convenient to maintain and saves cost, has become a technical problem to be urgently solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application provides an overhead traveling crane driving system, which has the advantages of convenience in maintenance and cost saving.

The technical scheme provided by the application is as follows:

the application provides a crown block actuating system, includes: an AC motor module; the frequency converter is connected with the alternating current motor module; the PLC control system is connected with the frequency converter; the cart position sensing module is connected with the PLC control system; and the coding cable is arranged on a cart walking track.

Further, in a preferred mode of the present invention, the crown block driving system further includes: and the limit switch is arranged at a rotatable driving seat in the crown block driving cab.

Further, in a preferred mode of the present invention, the limit switch is specifically an electromagnetic induction switch.

Further, in a preferred mode of the present invention, the crown block driving system further includes: install the laser ranging module on the cart.

Further, in a preferred mode of the present invention, the crown block driving system further includes: and the reflector is arranged on the trolley at a position corresponding to the laser ranging module.

Further, in a preferred mode of the present invention, the ac motor module includes: a main hook motor and an auxiliary hook motor.

Further, in a preferred embodiment of the present invention, the main hook encoder is installed on a concentric shaft of the main hook motor, and the auxiliary hook encoder is installed on a concentric shaft of the auxiliary hook motor.

Further, in a preferred mode of the present invention, the crown block driving system further includes: and the shaking device is used for driving the crane body to shake.

Further, in a preferred mode of the present invention, the shaking means includes: a dither motor; the shaking mechanism is connected with the shaking motor and the crown block body; and a shaking controller for controlling the shaking motor.

Further, in a preferred mode of the present invention, with the control touch display screen connected to the PLC control system.

The utility model provides a pair of overhead traveling crane actuating system compares with prior art, the utility model relates to an overhead traveling crane actuating system includes: an AC motor module; the frequency converter is connected with the alternating current motor module; the PLC control system is connected with the frequency converter; the cart position sensing module is connected with the PLC control system; and the coding cable is arranged on a cart walking track. Therefore, the embodiment of the utility model provides an overhead traveling crane actuating system, it adopts alternating current motor module; compared with the prior direct current system, the alternating current motor which is convenient, energy-saving and economical can be selected without manufacturing a complex, expensive and troublesome-to-maintain direct current motor, so that compared with the prior art, the direct current system is convenient to maintain and saves cost.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of an overhead traveling crane driving system provided by an embodiment of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of a plurality of or a plurality of is two or more unless specifically limited otherwise.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, do not have the technical essence, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.

As shown in fig. 1, an embodiment of the present invention provides a driving system for an overhead traveling crane, including: an alternating current motor module 1; the frequency converter 2 is connected with the alternating current motor module 1; the PLC control system 3 is connected with the frequency converter 2; the cart position sensing module 4 is connected with the PLC control system 3; and the coding cable is arranged on a cart walking track.

The embodiment of the utility model provides a crown block actuating system compares with prior art, the utility model provides a crown block actuating system who relates to includes: an alternating current motor module 1; the frequency converter 2 is connected with the alternating current motor module 1; the PLC control system 3 is connected with the frequency converter 2; the cart position sensing module 4 is connected with the PLC control system 3; and the coding cable is arranged on a cart walking track. Therefore, the embodiment of the utility model provides an overhead traveling crane actuating system, it adopts alternating current motor module 1; compared with the prior direct current system, the alternating current motor which is convenient, energy-saving and economical can be selected without manufacturing a complex, expensive and troublesome-to-maintain direct current motor, so that compared with the prior art, the direct current system is convenient to maintain and saves cost.

Specifically, in the embodiment of the present invention, the crown block driving system further includes: and the limit switch is arranged at a rotatable driving seat in the crown block driving cab.

Specifically, in the embodiment of the present invention, the limit switch is specifically an electromagnetic induction switch.

Specifically, in the embodiment of the present invention, the crown block driving system further includes: and the laser ranging module 5 is installed on the cart.

Specifically, in the embodiment of the present invention, the crown block driving system further includes: and the reflector is arranged on the trolley at a position corresponding to the laser ranging module.

Specifically, in the embodiment of the present invention, the ac motor module includes: a main hook motor and an auxiliary hook motor.

Specifically, in the embodiment of the utility model provides an in, install the main hook encoder on the concentric shaft of main hook motor, install the vice hook encoder on the concentric shaft of vice hook motor.

Specifically, in the embodiment of the present invention, the crown block driving system further includes: and the shaking device is used for driving the crane body to shake.

Specifically, in the embodiment of the present invention, the shaking device includes: a dither motor; the shaking mechanism is connected with the shaking motor and the crown block body; and a shaking controller for controlling the shaking motor.

Specifically, in the embodiment of the utility model provides an, with the continuous touch display screen that controls of PLC control system.

More specifically explain, the embodiment of the utility model provides a converter that relates to mainly is the alternating current motor of drive overhead traveling crane cart, dolly, realizes the smooth operation of speed, realizes the soft start and the soft stop of system. Compared with the prior direct current system, the alternating current motor which is convenient, energy-saving and economical can be selected without manufacturing a complex, expensive and maintenance-troublesome direct current motor, thereby saving the cost.

Compared with the conventional electric control, the high-power resistance accelerating contactor and the motor forward and reverse rotation alternating current contactor on the rotor side of the motor are omitted. The requirements of the hoisting mechanism on speed regulation hardness low-frequency torque characteristics and four-quadrant operation can be met, the hoisting mechanism can operate at a low speed for a long time, and the phenomenon of hook slipping in the air under heavy load can be effectively prevented.

Meanwhile, a vector control closed-loop mode is adopted, and a lifting motor can also output at a zero speed by a full moment, so that zero-speed band-type brake is realized. The brake can be controlled at full speed, and vibration and abrasion when the band-type brake is closed are reduced.

The PLC control system of this embodiment is a novel industrial control device based on computer technology, which uses programmable memory to store operation instructions such as logic operation, sequence operation, timing, counting and arithmetic operation, and can control various types of machinery or production processes through digital or analog input and output. The following factors need to be considered in combination with the requirements of the using condition of the crown block:

in consideration of the service environment of the travelling crane, the PLC has strong mechanical and electrical performance, impact resistance, electrical isolation and pollution prevention.

In consideration of the characteristics of high driving speed and high response, the PLC is required to have high response and resolving power.

The intelligent control system is provided with various intelligent modules and special application modules (such as a shaft control module, a counting module, a PID control module, a fuzzy control module and the like).

The PLC should provide comprehensive self-diagnostic functionality, ranging from run-time event diagnostics to real-time diagnostics of all system components. The diagnostic function is as follows: detecting the health state of the IO module: detecting the state of each channel; wire break/short circuit detection; and panel indication. Detecting the hardware of the CPU in operation: RAM, Flash RAM, peripheral control chip, etc. Network detection: transmission error detection, etc.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A crown block drive system, comprising:

an AC motor module;

the frequency converter is connected with the alternating current motor module;

the PLC control system is connected with the frequency converter;

the cart position sensing module is connected with the PLC control system;

the coding cable is arranged on a cart walking track;

the laser ranging module is arranged on the cart;

the reflector is arranged on the trolley at a position corresponding to the laser ranging module;

the shaking device is used for driving the crane body to shake;

wherein the dithering apparatus includes: a dither motor; the shaking mechanism is connected with the shaking motor and the crown block body; and a shaking controller for controlling the shaking motor.

2. The crown block drive system according to claim 1, further comprising: and the limit switch is arranged at a rotatable driving seat in the crown block driving cab.

3. The crown block drive system according to claim 2, characterized in that the limit switch is in particular an electromagnetic induction switch.

4. The crown block drive system according to claim 1, wherein the ac motor module comprises: a main hook motor and an auxiliary hook motor.

5. The crown block drive system according to claim 4, wherein a concentric shaft of the main hook motor is provided with a main hook encoder, and a concentric shaft of the auxiliary hook motor is provided with an auxiliary hook encoder.

6. The crown block driving system according to claim 1, wherein a control touch display screen connected to the PLC control system.

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