阅读说明：本技术 塔机的低压控制单元以及塔机系统 (Low-voltage control unit of tower crane and tower crane system ) 是由 姜连才 杨华平 李杨 于 2019-10-30 设计创作，主要内容包括：本发明提供了一种塔机的低压控制单元以及塔机系统,涉及塔机的技术领域,包括：直流模块,用于将输入至所述塔机的交流电转化为低压直流电；涡流模块,用于为所述塔机的回转电机提供低压涡流；控制模块,分别与所述直流模块和所述涡流模块连接,用于根据所述塔机的中央控制系统的指令,控制所述低压直流电和所述低压涡流的输出；集成电路板,设置于所述塔机上,所述直流模块、所述涡流模块以及所述控制模块均封装于所述集成电路板上。解决了现有技术中存在的塔机的线路结构复杂使塔机的维修过程困难的技术问题。(The invention provides a low-voltage control unit of a tower crane and a tower crane system, which relate to the technical field of tower cranes and comprise the following components: the direct current module is used for converting alternating current input to the tower crane into low-voltage direct current; the eddy current module is used for providing low-voltage eddy current for a rotary motor of the tower crane; the control module is respectively connected with the direct current module and the eddy current module and is used for controlling the output of the low-voltage direct current and the low-voltage eddy current according to the instruction of a central control system of the tower crane; the integrated circuit board is arranged on the tower crane, and the direct current module, the eddy current module and the control module are all packaged on the integrated circuit board. The technical problem that the maintenance process of the tower crane is difficult due to the fact that the line structure of the tower crane is complex in the prior art is solved.)

1. A low-voltage control unit of a tower crane, comprising:

the direct current module is used for converting alternating current input to the tower crane into low-voltage direct current;

the eddy current module is used for providing low-voltage eddy current for a rotary motor of the tower crane;

the control module is respectively connected with the direct current module and the eddy current module and is used for controlling the output of the low-voltage direct current and the low-voltage eddy current according to the instruction of a central control system of the tower crane;

the integrated circuit board is arranged on the tower crane, and the direct current module, the eddy current module and the control module are all packaged on the integrated circuit board.

2. The low voltage control unit of the tower crane according to claim 1, further comprising:

and the relay module comprises a plurality of relays integrated together through the integrated circuit board, and the relays are respectively used for controlling strong currents of different parts of the tower crane.

3. The low voltage control unit of the tower crane according to claim 2, wherein the plurality of relays are connected with external components of the integrated circuit board through connectors.

4. The low voltage control unit of the tower crane according to claim 1, further comprising:

the phase sequence detection module is used for detecting a power supply phase sequence of alternating current input to the tower crane;

and the phase sequence detection module is packaged on the integrated circuit board.

5. The low voltage control unit of the tower crane according to claim 1, further comprising:

the communication module is used for communicating with the central control system, acquiring an instruction of the central control system and transmitting the instruction to the control module;

the communication module is packaged on the integrated circuit board.

6. The low voltage control unit of the tower crane according to claim 5, wherein the communication module communicates with the central control system through a CAN bus.

7. The low-voltage control unit of the tower crane according to claim 1, wherein the integrated circuit board is connected with an external component of the integrated circuit board through a connector harness.

8. A tower crane system, comprising: a central control system and a low voltage control unit of a tower crane according to any one of the preceding claims 1-7;

and the low-voltage control unit of the tower crane is connected with the central control system through a CAN bus.

9. The tower crane system as claimed in claim 8, wherein the central control system is used for controlling the low voltage power supply part of the tower crane through the low voltage control unit of the tower crane.

10. The tower crane system as claimed in claim 8, wherein the central control system is used for controlling the overall operation of the tower crane.

Technical Field

The invention relates to the technical field of tower cranes, in particular to a low-voltage control unit of a tower crane and a tower crane system.

Background

The tower crane is the most common hoisting equipment in construction sites, and is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction by lengthening the tower crane section by section. The tower crane (tower crane) tip has the function of bearing the upper load transmitted by the boom pull rope and the balance arm pull rope, and the upper load is directly transmitted to the tower body structure through the rotary tower, the rotary table, the bearing seat and other structural components.

However, the number of components required by the tower crane is large, so that the line structure of the tower crane system is complex, the number of fault points is large, and the maintenance process of the tower crane is difficult.

Disclosure of Invention

The invention aims to provide a low-voltage control unit of a tower crane and a tower crane system, and aims to solve the technical problem that the maintenance process of the tower crane is difficult due to the complex line structure of the tower crane in the prior art.

In a first aspect, an embodiment of the present invention provides a low-voltage control unit for a tower crane, including:

the direct current module is used for converting alternating current input to the tower crane into low-voltage direct current;

the eddy current module is used for providing low-voltage eddy current for a rotary motor of the tower crane;

the control module is respectively connected with the direct current module and the eddy current module and is used for controlling the output of the low-voltage direct current and the low-voltage eddy current according to the instruction of a central control system of the tower crane;

the integrated circuit board is arranged on the tower crane, and the direct current module, the eddy current module and the control module are all packaged on the integrated circuit board.

With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the method further includes:

and the relay module comprises a plurality of relays integrated together through the integrated circuit board, and the relays are respectively used for controlling strong currents of different parts of the tower crane.

With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein the plurality of relays are connected to external components of the integrated circuit board through connectors.

With reference to the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the third possible implementation manner further includes:

the phase sequence detection module is used for detecting a power supply phase sequence of alternating current input to the tower crane;

and the phase sequence detection module is packaged on the integrated circuit board.

With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the method further includes:

the communication module is used for communicating with the central control system, acquiring an instruction of the central control system and transmitting the instruction to the control module;

the communication module is packaged on the integrated circuit board.

With reference to the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where the communication module communicates with the central control system through a Controller Area Network (CAN) bus.

With reference to the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein the integrated circuit board is connected to an external component of the integrated circuit board through a connector harness.

In a second aspect, an embodiment of the present invention further provides a tower crane system, including: a central control system and a low-voltage control unit of the tower crane according to the first aspect;

and the low-voltage control unit of the tower crane is connected with the central control system through a CAN bus.

With reference to the second aspect, an embodiment of the present invention provides a first possible implementation manner of the second aspect, where the central control system is configured to control a low-voltage power supply portion of the tower crane through a low-voltage control unit of the tower crane.

With reference to the second aspect, an embodiment of the present invention provides a second possible implementation manner of the second aspect, where the central control system is configured to control an overall operation of the tower crane.

The technical scheme provided by the embodiment of the invention has the following beneficial effects: the embodiment of the invention provides a low-voltage control unit of a tower crane and a tower crane system, comprising: the system comprises a direct current module, an eddy current module, a control module and an integrated circuit board, wherein the direct current module is used for converting alternating current input to the tower crane into low-voltage direct current, and the eddy current module is used for providing low-voltage eddy current for a rotary motor of the tower crane; the control module is respectively connected with the direct current module and the eddy current module, the control module is used for controlling the output of low-voltage direct current and low-voltage eddy current according to the instruction of a central control system of the tower crane, the integrated circuit board is arranged on the tower crane, the direct current module, the eddy current module and the control module are all packaged on the integrated circuit board, and the integrated circuit board is completely packaged on the integrated circuit board by integrating a plurality of functional modules for controlling the low voltage of the tower crane, so that the circuit for realizing the low-voltage control function of the tower crane is simplified, the complexity of the low-voltage control circuit of the tower crane is greatly reduced, the maintenance of the tower crane is more visual and convenient, and the technical problem that the maintenance process of the tower crane is difficult due to the complex.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic diagram of a conventional tower crane control system;

fig. 2 is a schematic structural diagram of a low-voltage control unit of a tower crane provided in the embodiment of the present application;

fig. 3 is another schematic structural diagram of a low-voltage control unit of a tower crane provided in the embodiment of the present application;

fig. 4 is a structural schematic diagram of a tower crane system provided in the embodiment of the present application.

Icon: 1-a low-voltage control unit of the tower crane; 11-a direct current module; 12-a vortex module; 13-a control module; 14-an integrated circuit board; 2-a tower crane system; 21-central control system.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is in no way limited to any specific configuration and algorithm set forth below, but rather covers any modification, replacement or improvement of elements, components or algorithms without departing from the spirit of the invention. In the drawings and the following description, well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present invention.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

In the description of the present application, the meaning of "at least one" means one or more than one unless otherwise stated. For example, at least one USB device refers to one USB device or more than one USB device.

Furthermore, the terms "comprising" and "having" and any variations thereof as referred to in the description of the invention are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

At present, various discrete functional elements are dispersedly installed in a tower crane control cabinet and a power cabinet in a traditional tower crane control system, and the elements are independently connected through electric wires and combined to realize various functions of the tower crane, as shown in fig. 1, the functions are realized by adopting the combination of the independent elements, so that the traditional tower crane control system has the advantages of numerous elements, complex system, undefined functional units, multiple fault points and difficult maintenance. For example, the phase sequence detection part, the switching power supply control part, the controller, the relay, the peripheral communication element, the peripheral signal acquisition element, the system eddy current module and the like are installed in a decentralized mode.

Therefore, in the existing tower crane, a plurality of discrete elements are combined to realize one function, and the system is complex; moreover, the functional units are unclear, have many failure points, and are difficult to install and maintain.

Based on the above, the low-voltage control unit of the tower crane and the tower crane system provided by the embodiment of the invention can solve the technical problem that the maintenance process of the tower crane is difficult due to the complex line structure of the tower crane in the prior art.

In order to facilitate understanding of the embodiment, first, the low-voltage control unit of the tower crane and the tower crane system disclosed in the embodiment of the invention are described in detail.