Coal mining machine 3D wire harness design method, system, equipment and medium

Abstract

The invention belongs to the technical field of coal mining mechanical equipment, and discloses a coal mining machine 3D wire harness design method, system, equipment and medium, and the method comprises the steps: under the support of Library software, establishing a complete parameter symbol library of components such as connectors, wires and the like; secondly, drawing a schematic circuit diagram with electrical attributes under the support of EPLAN P8 software, then importing a mechanical structure model into EPLAN Harness proD software, planning a wiring path on the model, importing EPLAN P8 principle data into EPLAN Harness proD, placing a connector and automatically wiring, and finally, creating a three-dimensional wiring harness under the support of the EPLAN Harness proD software, creating a two-dimensional wiring harness nail layout after verification, and finally, drawing a two-dimensional wiring harness nail layout after verification. And finally, a production drawing meeting the requirements is generated. According to the technical scheme, the system stability and the product reliability can be remarkably improved.

Description

Technical Field

[0001] This invention belongs to the technical field of coal mining machinery and equipment, and in particular relates to a 3D wiring harness design method, system, equipment and medium for coal mining machines. Background Technology

[0002] With the intelligent development of coal mining machines, the number of coal mining machine products and sensing devices is constantly increasing, and the number of wiring harnesses connecting electrical modules is also increasing. The overall wiring harness is becoming more and more complex, and low-latency, high-bandwidth communication also places higher demands on the quality of the wiring harness. However, the current wiring methods do not have an overall design for the wiring harness, often resulting in problems such as large wiring harness length errors, poor binding aesthetics, unreasonable binding, and unstable wiring quality. Traditional production methods cannot anticipate wiring collisions and interference, or prevent electromagnetic interference, which seriously restricts production and debugging efficiency and affects the stability of the control system. There are already cases in the industry that have tried to use 3D software to design the wiring harnesses of the wires inside the coal mining machine electrical control box and external sensors. The software used includes CATIA, SolidWorks, and CREO. However, 3D wiring harness design has not been widely promoted in coal mining machine design, and most of the traditional wiring methods are still used, resulting in poor system stability and product reliability. Summary of the Invention

[0003] The purpose of this invention is to provide a 3D wiring harness design method, system, equipment, and medium for coal mining machines to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention provides a 3D wiring harness design method for coal mining machines, comprising:

[0005] Step 1: Construct a component parameter symbol library.

[0006] Step 2: Import the 3D models of the connector and the coal mining machine electrical control box, and draw the circuit schematic with electrical attributes using EPLAN P8 software and the component parameter symbol library;

[0007] Step 3: Import the 3D model of the coal mining machine's electrical control box and installation environment information into the EPLAN Harness proD software, place the connectors in the coal mining machine's electrical control box and plan the wiring path;

[0008] Step 4: Import the circuit schematic into EPLAN Harness proD software, place the connectors, perform automatic routing, optimize the layout of the generated wire harness, and create a wire harness pinboard diagram.

[0009] Step 5: Verify the wiring harness board diagram. If the verification fails, return to Step 2 to redesign the circuit schematic. If the verification passes, perform modular assembly of the coal mining machine control box to obtain a sample. Test the sample. If the test is qualified, proceed to production. If the test fails, return to Step 2 to redesign the circuit schematic.

[0010] Optionally, the process of constructing the component parameter symbol library specifically includes:

[0011] Use EPLAN P8 software to build a component library based on an SQL database. Open the same component library using the Library, add 3D models, add pins to define installation locations, and synchronize with EPLAN P8.

[0012] Optionally, the process of drawing the circuit schematic specifically includes:

[0013] Import the electrical properties and mechanical models of the components into the component parameter symbol library, draw the circuit schematic with electrical properties based on EPLAN P8 software, and select the corresponding wire component for each connection line in the circuit schematic.

[0014] Optionally, the specific process of the automatic wiring includes:

[0015] After placing the connector, the connecting wires are automatically placed. Use the wire harness path placement tool in EPLAN Harness proD to place the wire harness path, use the wiring tool to place the wires into the path to generate the wire harness, place a protective sleeve on the outside of the wire harness, and name the wire harness.

[0016] Optionally, the layout optimization of the generated wire harness specifically includes:

[0017] The generated wire harness is optimized for routing collisions and interferences. The EPLAN analysis tool is used to calculate the bending angle, bending arc length, bending radius, conductor length, cable length, stress and strain, and total length margin. Based on the calculation results, a wire harness nailing board diagram is created for wire harness production.

[0018] Optionally, the specific process of the modular assembly includes:

[0019] The coal mining machine's electrical control box is divided into modular components, power supply components, contactor components, reactor components, wiring assembly components, and expansion components, and modular assembly is carried out based on each component.

[0020] A 3D wiring harness design system for a coal mining machine, comprising:

[0021] The database construction module is used to build a symbol library for component parameters.

[0022] The circuit schematic design module is used to import 3D models of connectors and coal mining machine electrical control boxes, and combine them with EPLAN P8 software and component parameter symbol library to draw circuit schematics with electrical attributes.

[0023] The wiring path planning module is used to import the 3D model and installation environment information of the coal mining machine electrical control box into the EPLAN Harness proD software, place connectors in the coal mining machine electrical control box, and plan the wiring path.

[0024] The wire harness pinboard diagram construction module imports the circuit schematic into EPLAN Harness proD software, places connectors, performs automatic routing, optimizes the layout of the generated wire harness, and creates the wire harness pinboard diagram.

[0025] The verification module is used to verify the wiring harness nail board diagram. If the verification fails, the circuit schematic is redesigned. If the verification passes, the modular assembly of the coal mining machine electrical control box is carried out to obtain a sample. The sample is tested. If the test is qualified, production is carried out. If the test fails, the circuit schematic is redesigned.

[0026] An electronic device includes a memory and a processor, the memory storing a computer program and the processor running the computer program to enable the electronic device to perform the aforementioned 3D wiring harness design method for a coal mining machine.

[0027] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the aforementioned 3D wiring harness design method for a coal mining machine.

[0028] The technical effects of this invention are as follows:

[0029] This invention introduces EPLAN Harness ProD wiring harness 3D design software, changing the relatively traditional design methods and enabling dynamic, digital, and information-based modular and wiring harness design of the coal mining machine electrical control system. This can improve the reliability and maintainability of the electrical control system. By carrying out digital and modular design of wiring harnesses, the production mode is revolutionized from the ground up, which can significantly improve system stability and product reliability. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. 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 creative effort.

[0031] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0032] Figure 1 This is a design diagram of the power supply component in an embodiment of the present invention;

[0033] Figure 2 This is a design diagram of the module components in an embodiment of the present invention;

[0034] Figure 3 These are three-dimensional design drawings of various components in the embodiments of the present invention;

[0035] Figure 4 This is a diagram of the wire harness production nail plate in an embodiment of the present invention;

[0036] Figure 5 This is a three-dimensional wire harness design drawing in an embodiment of the present invention;

[0037] Figure 6 This is a flowchart illustrating the implementation of this invention.

[0038] Figure 7 This is a schematic diagram illustrating the design principle in an embodiment of the present invention. Detailed Implementation

[0039] Various exemplary embodiments of the present invention will now be described in detail. This detailed description should not be considered as a limitation of the present invention, but rather as a more detailed description of certain aspects, features, and embodiments of the present invention.

[0040] It should be understood that the terminology used in this invention is merely for describing particular embodiments and is not intended to limit the invention. Furthermore, with respect to numerical ranges in this invention, it should be understood that each intermediate value between the upper and lower limits of the range is also specifically disclosed. Every smaller range between any stated value or intermediate value within a stated range, and any other stated value or intermediate value within said range, is also included in this invention. The upper and lower limits of these smaller ranges may be independently included or excluded from the range.

[0041] Various modifications and variations can be made to the specific embodiments described in this specification without departing from the scope or spirit of the invention, as will be apparent to those skilled in the art. Other embodiments derived from this specification will also be obvious to those skilled in the art. This application specification and embodiments are merely exemplary.

[0042] The terms “include,” “including,” “have,” “contain,” etc., used in this article are all open-ended terms, meaning that they include but are not limited to.

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] like Figure 1 - Figure 7 As shown, this embodiment provides a 3D wiring harness design method for a coal mining machine, including:

[0045] Construct a symbol library for component parameters.

[0046] Import the 3D models of the connector and the coal mining machine's electrical control box, and draw the circuit schematic with electrical attributes using EPLAN P8 software and the component parameter symbol library;

[0047] Import the 3D model and installation environment information of the coal mining machine electrical control box into the EPLAN Harness proD software, place the connectors in the coal mining machine electrical control box and plan the wiring path;

[0048] Import the circuit schematic into EPLAN Harness proD software, place the connectors, perform automatic routing, optimize the layout of the generated wire harness, and create a wire harness pinboard diagram.

[0049] The wiring harness board diagram is verified. If the verification fails, the circuit schematic is redesigned. If the verification passes, the modular assembly of the coal mining machine electrical control box is carried out to obtain a sample. The sample is tested. If the test is qualified, production is carried out. If the test fails, the circuit schematic is redesigned.

[0050] This embodiment utilizes EPLAN 3D wiring harness design software to perform visualized wiring harness layout design for coal mining machines, anticipating wiring collisions and interference, preventing electromagnetic interference, and improving design efficiency. It solves the problem of the inability to achieve simultaneous mechanical and electrical integration design of coal mining machines in recent decades, thus improving the accuracy and efficiency of coal mining machine design. Simultaneously, this embodiment creates a unified management method for coal mining machine electrical components using an SQL Server database. The component list used in electrical design is accurately exported based on a unique database platform, while also being compatible with ERP production systems. Furthermore, the use of an SQL Server database for unified management of electrical components and structural connectors enables synchronous collaboration between electrical and structural design, and synchronous collaboration between R&D and production. In addition, this embodiment pioneers a coal mining machine wiring harness design and production method based on nail board diagrams. Nail board diagrams are printed at a 1:1 scale and installed on wiring harness boards for wiring harness production.

[0051] The workflow of this embodiment includes:

[0052] Based on the production contract requirements, the entire process is carried out in sequence: electrical schematic design → wire harness topology design → 3D wiring design → exporting 2D board diagram design → material selection and BOM customization → equipment review → prototype production → testing and verification → small batch production → final mass production.

[0053] The specific design process of this embodiment is as follows:

[0054] 1. Data Import: Import the 3D models of the connector and the coal mining machine electrical control box, import the electrical properties and mechanical models of the components into the SQL database, create electrical components in the EPLAN P8 component library, open the same electrical components in the EPLAN Harness proD Library, import the mechanical models, and place electrical connection terminals and wire properties.

[0055] 2. Selection of wire components: Select the corresponding wire components for each connecting wire in the schematic diagram designed in EPLAN P8 software;

[0056] 3. Importing the 3D model of the coal mining machine:

[0057] Import the 3D model of the coal mining machine and the installation environment information of the entire housing into EPLAN Harness proD;

[0058] 4. Place connectors: Place the predefined connectors with electrical attributes in the corresponding positions of the imported coal mining machine housing model;

[0059] 5. Wire Harness Routing: After placing the connector, the connecting wires are automatically placed. Use the wire harness path placement tool in EPLAN Harness proD to place the wire harness path. Use the routing tool to arrange the wires into the appropriate path to generate the wire harness. Place a protective sleeve on the outside of the wire harness and name the wire harness.

[0060] 6. Layout optimization and creation of wire harness nail board diagram: Optimize wiring collision and interference of the generated wire harness, prevent electromagnetic interference, simulate wire harness routing and assembly, use EPLAN analysis tool to calculate indicators such as bending angle, bending arc length, bending radius, wire length, cable length, stress and strain, and total length margin, and then create a nail board diagram for wire harness production to guide wire harness processing and improve production efficiency;

[0061] 7. The control system of the coal mining machine electrical control box is divided into modular components, power supply components, contactor components, etc., and assembled in a modular manner.

[0062] First, with the support of Library software, a complete symbol library of connectors, wires, and other component parameters is established. Second, with the support of P8 software, circuit schematics with electrical attributes are drawn. Then, the mechanical structure Cero model is imported into HPD software, wiring paths are planned on the model, P8 schematic data is imported into HPD, connectors are placed, and automatic wiring is performed. Finally, with the support of HPD software, a 3D wire harness is created, and after verification, a 2D wire harness pin layout is created, ultimately generating production drawings that meet the requirements.

[0063] The design principle of this embodiment is:

[0064] (1) The modular component design is adopted, which is divided into module components, power supply components, contactor components, reactor components, wire guide components and expansion components.

[0065] (2) The wiring harness of the electrical control box shall comply with the relevant provisions of GB / T3836.1~GB / T3836.4-2021 "Explosive Atmospheres".

[0066] (3) The components inside the control box shall meet the requirements of this specification and their respective standards.

[0067] (4) The components are connected by quick connector plugs. After the plug is removed, the entire component can be pulled out of the electrical control box and completely detached.

[0068] (5) The components are designed in a universal way according to the classification of large and small units.

[0069] (6) Install the corresponding wire harness fixing bracket according to the wiring path designed for the wire harness. Use wire ties to fix the top and use detachable fixing brackets to fix the side walls of the box.

[0070] (7) For components with a double-layer internal design, it is necessary to ensure that the lower module can be easily disassembled.

[0071] (8) The internal wiring harness design of the same standard parts must be completely consistent to ensure universality.

[0072] (9) Two 72-pin quick connectors are used to disconnect the incoming wires of the wire group.

[0073] (10) The internal design of the component is a wire harness fixing bracket, which facilitates wire routing.

[0074] In summary, this embodiment constructs a modular and prefabricated design system for the electrical system of a coal mining machine. Electrical principle modeling is completed using the EPLAN Electric P8 design platform, a standardized shared component database is established, and the electrical control system is deconstructed into modular component units. Standardized quick-connect plugs are used to achieve electrical interconnection between components. By establishing a digital twin virtual model, standardized design and cross-model universal adaptation of plugs and wiring harnesses for the same machine model are achieved, supporting prefabricated production and modular assembly of components and wiring harnesses.

[0075] This embodiment utilizes Harness ProD software to conduct collaborative and visual wiring harness design within the modular design framework of the coal mining machine's electrical system, enabling real-time two-way data interaction. By constructing a digital model, the wiring harness topology is synchronously mapped to the mechanical spatial layout. The design results can directly output standardized production documents such as component lists, electrical wiring diagrams, and wiring harness stapling diagrams, achieving seamless data flow from virtual modeling to manufacturing.

[0076] This embodiment constructs an electrical component management database that seamlessly integrates with the ERP production system. It digitally models the entire lifecycle data of electrical components and structural connectors, enabling real-time linkage between physical entities and virtual models. During the electrical design phase, the database platform allows for efficient import and export of components. Simulation and deduction functions are used to verify component compatibility and assembly feasibility in advance, effectively avoiding design conflicts.

[0077] Meanwhile, the database integrates electrical and structural data, enabling unified coding and standardized management of components across different domains, and building a real-time collaborative data bridge for R&D and production departments. Personnel at all stages can interact with data and update versions based on the same digital twin model, ensuring information accuracy and consistency, significantly improving multi-departmental collaboration efficiency, and providing a solid data foundation and technical support for the smooth operation of lean production processes.

[0078] This embodiment constructs a novel intelligent production system for wire harnesses that maps virtual and real data. By creating a 3D digital model of the wire harness, it simulates its actual working conditions and layout in coal mining equipment, accurately plans the optimal wiring path, and uses algorithms to dynamically calculate the conductor length. Simultaneously, the digital model can verify the feasibility of the data in real time, ensuring the accuracy of production information and outputting comprehensive production data covering all elements such as wire harness name, conductor type, cross-sectional area, color, length, and connection point code.

[0079] This embodiment also provides a 3D wiring harness design system for a coal mining machine, comprising:

[0080] The database construction module is used to build a symbol library for component parameters.

[0081] The circuit schematic design module is used to import 3D models of connectors and coal mining machine electrical control boxes, and combine them with EPLAN P8 software and component parameter symbol library to draw circuit schematics with electrical attributes.

[0082] The wiring path planning module is used to import the 3D model and installation environment information of the coal mining machine electrical control box into the EPLAN Harness proD software, place connectors in the coal mining machine electrical control box, and plan the wiring path.

[0083] The wire harness pinboard diagram construction module imports the circuit schematic into EPLAN Harness proD software, places connectors, performs automatic routing, optimizes the layout of the generated wire harness, and creates the wire harness pinboard diagram.

[0084] The verification module is used to verify the wiring harness nail board diagram. If the verification fails, the circuit schematic is redesigned. If the verification passes, the modular assembly of the coal mining machine electrical control box is carried out to obtain a sample. The sample is tested. If the test is qualified, production is carried out. If the test fails, the circuit schematic is redesigned.

[0085] In practice, this embodiment also provides an electronic device, including a memory and a processor, wherein the memory is used to store a computer program, and the processor runs the computer program to enable the electronic device to execute the described coal mining machine 3D wiring harness design method.

[0086] In practice, this embodiment also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the aforementioned 3D wiring harness design method for a coal mining machine.

[0087] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A 3D wiring harness design method for a coal mining machine, characterized in that, include: Step 1: Construct a component parameter symbol library. Step 2: Import the 3D models of the connector and the coal mining machine electrical control box, and draw the circuit schematic with electrical attributes using EPLAN P8 software and the component parameter symbol library; Step 3: Import the 3D model of the coal mining machine's electrical control box and installation environment information into the EPLAN Harness proD software, place the connectors in the coal mining machine's electrical control box and plan the wiring path; Step 4: Import the circuit schematic into EPLAN Harness proD software, place the connectors, perform automatic routing, optimize the layout of the generated wire harness, and create a wire harness pinboard diagram. Step 5: Verify the wiring harness board diagram. If the verification fails, return to Step 2 to redesign the circuit schematic. If the verification passes, perform modular assembly of the coal mining machine control box to obtain a sample. Test the sample. If the test is qualified, proceed to production. If the test fails, return to Step 2 to redesign the circuit schematic.

2. The method according to claim 1, characterized in that, The construction process of the component parameter symbol library specifically includes: Use EPLAN P8 software to build a component library based on an SQL database. Open the same component library using the Library, add 3D models, add pins to define installation locations, and synchronize with EPLAN P8.

3. The method according to claim 1, characterized in that, The process of drawing the circuit schematic specifically includes: Import the electrical properties and mechanical models of the components into the component parameter symbol library, draw the circuit schematic with electrical properties based on EPLAN P8 software, and select the corresponding wire component for each connection line in the circuit schematic.

4. The method according to claim 1, characterized in that, The specific process of the automatic wiring includes: After placing the connector, the connecting wires are automatically placed. Use the wire harness path placement tool in EPLAN Harness proD to place the wire harness path, use the wiring tool to place the wires into the path to generate the wire harness, place a protective sleeve on the outside of the wire harness, and name the wire harness.

5. The method according to claim 1, characterized in that, The layout optimization of the generated wire harness specifically includes: The generated wire harness is optimized for routing collisions and interferences. The EPLAN analysis tool is used to calculate the bending angle, bending arc length, bending radius, conductor length, cable length, stress and strain, and total length margin. Based on the calculation results, a wire harness nailing board diagram is created for wire harness production.

6. The method according to claim 1, characterized in that, The specific process of modular assembly includes: The coal mining machine's electrical control box is divided into modular components, power supply components, contactor components, reactor components, wiring assembly components, and expansion components, and modular assembly is carried out based on each component.

7. A 3D wiring harness design system for a coal mining machine, characterized in that, include: The database construction module is used to build a symbol library for component parameters. The circuit schematic design module is used to import 3D models of connectors and coal mining machine electrical control boxes, and combine them with EPLAN P8 software and component parameter symbol library to draw circuit schematics with electrical attributes. The wiring path planning module is used to import the 3D model and installation environment information of the coal mining machine electrical control box into the EPLAN Harness proD software, place connectors in the coal mining machine electrical control box, and plan the wiring path. The wire harness pinboard diagram construction module imports the circuit schematic into EPLAN Harness proD software, places connectors, performs automatic routing, optimizes the layout of the generated wire harness, and creates the wire harness pinboard diagram. The verification module is used to verify the wiring harness nail board diagram. If the verification fails, the circuit schematic is redesigned. If the verification passes, the modular assembly of the coal mining machine electrical control box is carried out to obtain a sample. The sample is tested. If the test is qualified, production is carried out. If the test fails, the circuit schematic is redesigned.

8. An electronic device, characterized in that, The device includes a memory and a processor, the memory being used to store a computer program, and the processor running the computer program to cause the electronic device to perform a 3D wiring harness design method for a coal mining machine according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, It stores a computer program, which, when executed by a processor, implements a 3D wiring harness design method for a coal mining machine as described in any one of claims 1-6.

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