Hydraulic pipeline three-dimensional design method based on skeleton model

Abstract

The invention belongs to the technical field of hydraulic system design, and particularly relates to a framework model-based hydraulic pipeline three-dimensional design method, which comprises the following steps of: firstly, creating a three-dimensional framework model, and then arranging all groups of a whole vehicle, assembling models of all parts and elements in the framework model based on the three-dimensional framework model. And the three-dimensional models of all groups, including skeleton models, are all stored in the data management system. Once some three-dimensional arrangements are changed, the three-dimensional arrangements can be quickly modified or replaced without influencing the assembly of other groups and parts, a new whole vehicle three-dimensional model can be quickly formed, and the design of the pipelines depends on reliable and accurate whole vehicle three-dimensional arrangements. The pipeline is designed according to the three-dimensional arrangement of the whole vehicle, so that the functionality, the maintainability, the supportability and the attractiveness of the pipeline design can be mastered on the whole, and rapid change of the pipeline is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic system design, and in particular relates to a three-dimensional design method of hydraulic pipelines based on a skeleton model. Background Art

[0002] Whether it is an engineering vehicle or an armored vehicle, the hydraulic system is generally indispensable. For multi-wheeled and multi-axle vehicles, the pipelines of the hydraulic system are extremely complex. When designing the pipeline, it is necessary to consider the functionality, maintainability, and security of the pipeline while also taking into account the aesthetics. The direction and layout of the pipeline are particularly important. The general pipeline design method is to survey and measure on the actual vehicle, make the pipeline on site, and then survey and map the pipeline to form an engineering drawing. This design method is inefficient. It is basically a step-by-step approach. It is impossible to have an overall overview from an overall perspective, and the arranged pipelines are often messy. Moreover, once the position of certain components in the vehicle changes, the pipeline needs to be re-surveyed and re-drawn. In fact, the layout priority of hydraulic pipelines is often lower than that of other components. Hydraulic pipelines often need to make way for the layout of other components in the vehicle while ensuring the normal function of the hydraulic system. Once the position of other components changes, the pipelines often need to be redesigned. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The technical problem to be solved by the present invention is how to provide a three-dimensional design method for hydraulic pipelines based on a skeleton model.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention provides a three-dimensional design method for hydraulic pipelines based on a skeleton model, and the three-dimensional design method for hydraulic pipelines based on a skeleton model comprises:

[0007] Step S1: creating a three-dimensional skeleton model of a vehicle body based on a data management system;

[0008] Step S2: based on the three-dimensional skeleton model of the vehicle body, draw three-dimensional models of the vehicle body group, brake group, steering group, and electrical group;

[0009] Step S3: drawing a three-dimensional model of hydraulic components of the hydraulic system based on the three-dimensional skeleton model;

[0010] Step S4: calling in all the three-dimensional models in the steps S1 to S3, performing three-dimensional assembly, and forming a three-dimensional model of the hydraulic system including the power unit and various hydraulic valve groups on the vehicle body;

[0011] Step S5: creating a hydraulic pipeline three-dimensional model based on the hydraulic system three-dimensional model by using a three-dimensional software hydraulic pipeline manufacturing method;

[0012] Step S6: Draw a pipeline engineering drawing based on the hydraulic pipeline three-dimensional model, and the pipeline engineering drawing is associated with the hydraulic pipeline three-dimensional model.

[0013] Step S7: All the above three-dimensional models are stored in the data management system.

[0014] Wherein, in the step S1, the three-dimensional skeleton model of the vehicle body includes at least three reference planes: the left and right center planes of the vehicle body, the front and rear center planes, and the outer surface of the vehicle body bottom plate.

[0015] Wherein, in the step S2, the three-dimensional model of the vehicle body group is a three-dimensional model of the vehicle body itself, and the vehicle body is an enclosure that accommodates personnel, equipment, and facilities.

[0016] The step S3 of drawing the layout diagram of hydraulic components of the hydraulic system specifically includes assembling various hydraulic valves, power units, oil filters, and driving devices of the hydraulic system except the hydraulic pipelines in the three-dimensional skeleton model according to their respective coordinates.

[0017] Wherein, the driving device includes an oil-gas spring.

[0018] In the step S4, all the three-dimensional models are imported, including the three-dimensional models of the vehicle body group, the brake group, the steering group, and the electrical group, to provide an intuitive three-dimensional basis for designing the three-dimensional model of the hydraulic pipeline;

[0019] When the layout of a group of 3D models changes, the original 3D model is directly deleted and replaced with the new 3D model of this group without affecting other 3D models, because their assembly bases are all elements in the 3D skeleton model and there is no mutual reference. This will greatly improve the design efficiency and enable the pipeline design plan to be modified in a timely and rapid manner.

[0020] Among them, in step S5, no matter how complex the route of the hydraulic pipeline is, it is composed of joints and hard pipe parts at both ends; by first assembling the welding joints on both sides of the hydraulic pipeline in the three-dimensional software, and then creating the starting point, end point, and path point of the hydraulic pipeline, setting the turning radius of the hydraulic pipeline and the inner and outer diameter parameters of the hydraulic pipeline, a three-dimensional model of the hydraulic pipeline is formed.

[0021] In the three-dimensional model of the hydraulic pipeline formed in step S5, the direction and layout of the hydraulic pipeline and the interference with other vehicle components can be intuitively observed;

[0022] Once the position of a certain group of devices is changed, the 3D model can be modified in time to see where the interference occurs, so that the hydraulic pipeline can be reselected and redrawn.

[0023] Among them, in the step S6, after the hydraulic pipeline three-dimensional model is finally determined, the pipeline engineering drawing is drawn; the pipeline engineering drawing is designed in association with the hydraulic pipeline three-dimensional model, and when the hydraulic three-dimensional model is changed, the pipeline engineering drawing is automatically changed.

[0024] (III) Beneficial effects

[0025] Compared with the prior art, the present invention provides a three-dimensional design method for hydraulic pipelines based on a skeleton model, which has the following beneficial effects:

[0026] (1) The hydraulic pipeline three-dimensional design method uses the skeleton model file as the reference file for modeling each group, with a unified benchmark, and all group three-dimensional models exist in the data management system. When designing the hydraulic system pipeline, it can be very convenient to call for reference and establish the vehicle layout drawing; providing an accurate three-dimensional model basis for the design of the pipeline.

[0027] (2) By using the skeleton model-based hydraulic pipeline 3D design method to design pipelines, the direction and layout of the pipelines and the positional relationship with other components in the vehicle can be clearly seen, effectively eliminating interference.

[0028] (3) There are many components that need to be arranged in the vehicle, and their positions often change before the final design is finalized. Once changed, it will affect the layout of the pipelines in the vehicle. Through the data management system, the 3D model of the corresponding group can be updated quickly and in real time, and the 3D model of the whole vehicle required for the design of the pipeline can be determined to redesign the local pipeline.

[0029] (4) The skeleton model-based hydraulic pipeline three-dimensional design method draws engineering drawings based on the pipeline three-dimensional model. The two are related. Once the three-dimensional model changes, the engineering drawings will be changed immediately. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 : Schematic diagram of the three-dimensional skeleton model for assembly;

[0031] Figure 2 : Vehicle layout drawing;

[0032] Figure 3 :Example diagram of specific pipeline design method;

[0033] Figure 4 : Design flow chart. DETAILED DESCRIPTION

[0034] In order to make the purpose, content, and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.

[0035] In order to solve the problems in the prior art, the present invention provides a three-dimensional design method for hydraulic pipelines based on a skeleton model, and the three-dimensional design method for hydraulic pipelines based on a skeleton model comprises:

[0036] Step S1: Create a three-dimensional skeleton model of the vehicle body based on the data management system, and the model is given by the overall team members;

[0037] Step S2: based on the three-dimensional skeleton model of the vehicle body, three-dimensional models of the vehicle body group, brake group, steering group, and electrical group are drawn, which are given by each group;

[0038] Step S3: based on the three-dimensional skeleton model, draw a three-dimensional model of hydraulic components of the hydraulic system, the three-dimensional model is given by the hydraulic system design team;

[0039] Step S4: The hydraulic system designer imports all the three-dimensional models in the steps S1 to S3, performs three-dimensional assembly, and forms a three-dimensional model of the hydraulic system including the power unit and various hydraulic valve groups on the vehicle body;

[0040] Step S5: creating a hydraulic pipeline three-dimensional model based on the hydraulic system three-dimensional model by using a three-dimensional software hydraulic pipeline manufacturing method;

[0041] Step S6: Draw a pipeline engineering drawing based on the hydraulic pipeline three-dimensional model, and the pipeline engineering drawing is associated with the hydraulic pipeline three-dimensional model.

[0042] Step S7: All the above three-dimensional models are stored in the data management system.

[0043] Among them, in step S1, the three-dimensional skeleton model of the vehicle body includes at least three reference planes: the left and right center planes of the vehicle body, the front and rear center planes (generally the planes in the front and rear directions where the power center of the transmission device is located), and the outer surface of the vehicle body bottom plate.

[0044] Wherein, in the step S2, the three-dimensional model of the vehicle body group is a three-dimensional model of the vehicle body itself, and the vehicle body is an enclosure that accommodates personnel, equipment, and facilities.

[0045] The step S3 of drawing the layout diagram of hydraulic components of the hydraulic system specifically includes assembling various hydraulic valves, power units, oil filters, and driving devices of the hydraulic system except the hydraulic pipelines in the three-dimensional skeleton model according to their respective coordinates.

[0046] Wherein, the driving device includes an oil-gas spring.

[0047] In the step S4, all the three-dimensional models are imported, including the three-dimensional models of the vehicle body group, the brake group, the steering group, and the electrical group, to provide an intuitive three-dimensional basis for designing the three-dimensional model of the hydraulic pipeline;

[0048] When the layout of a group of 3D models changes, the original 3D model is directly deleted and replaced with the new 3D model of this group without affecting other 3D models, because their assembly bases are all elements in the 3D skeleton model and there is no mutual reference. This will greatly improve the design efficiency and enable the pipeline design plan to be modified in a timely and rapid manner.

[0049] Among them, in step S5, no matter how complex the route of the hydraulic pipeline is, it is composed of joints and hard pipe parts at both ends; by first assembling the welding joints on both sides of the hydraulic pipeline in the three-dimensional software, and then creating the starting point, end point, and path point of the hydraulic pipeline, setting the turning radius of the hydraulic pipeline and the inner and outer diameter parameters of the hydraulic pipeline, a three-dimensional model of the hydraulic pipeline is formed.

[0050] In the three-dimensional model of the hydraulic pipeline formed in step S5, the direction and layout of the hydraulic pipeline and the interference with other vehicle components can be intuitively observed;

[0051] Once the position of a certain group of devices is changed, the 3D model can be modified in time to see where the interference occurs, so that the hydraulic pipeline can be reselected and redrawn.

[0052] Among them, in the step S6, after the hydraulic pipeline three-dimensional model is finally determined, the pipeline engineering drawing is drawn; the pipeline engineering drawing is designed in association with the hydraulic pipeline three-dimensional model, and when the hydraulic three-dimensional model is changed, the pipeline engineering drawing is automatically changed.

[0053] Example 1

[0054] In order to solve the problems of the prior art, this embodiment provides a 3D design method for hydraulic pipelines based on a data management system: first, a 3D skeleton model is created, and then the assembly models of all groups and all parts of the vehicle are arranged based on the 3D skeleton model. The assembly datum uniformly references the elements in the skeleton model, and there is no situation where one part is assembled as a reference for another part. The 3D assembly models of all groups, including the skeleton model, exist in the data management system.

[0055] Once some three-dimensional layouts change, they can be quickly modified or replaced without affecting the assembly of other groups or parts, and a new three-dimensional model of the whole vehicle can be quickly formed. Compared with other parts in the car, pipelines are one of the few groups that may have a positional relationship with all parts in the car, so the design of pipelines must rely on reliable and accurate three-dimensional layout of the whole vehicle. Designing pipelines based on the three-dimensional layout of the whole vehicle can not only grasp the functionality, maintainability, security, and aesthetics of the pipeline design from an overall perspective, but also facilitate the rapid change of pipelines.

[0056] Example 2

[0057] In order to solve the problems in the prior art, the present invention provides a three-dimensional design method for hydraulic pipelines based on a skeleton model, comprising:

[0058] Create a 3D skeleton model of the vehicle body;

[0059] Based on the three-dimensional skeleton model of the vehicle body, the assembly models of all groups and all parts of the vehicle are arranged, and the assembly datum uniformly refers to the elements in the three-dimensional skeleton model of the vehicle body to form a three-dimensional model of the vehicle except the hydraulic pipeline, so as to facilitate the three-dimensional design of the hydraulic pipeline; all groups of the vehicle include the vehicle body group, brake group, steering group, electrical group, and hydraulic group;

[0060] Arrange hydraulic components of the hydraulic system based on the 3D skeleton model of the vehicle body;

[0061] The three-dimensional skeleton model of the vehicle body contains three reference planes: the front and rear center plane of the vehicle body, the left and right center plane of the vehicle body, the outer surface of the bottom deck and a whole vehicle coordinate system; the vehicle body group model is the vehicle body itself;

[0062] The three-dimensional models of all groups are established with reference to the reference plane and reference coordinate system in the three-dimensional skeleton model. Once a model of a group changes, it is modified and modeled in the data management system without modifying the assembly reference system. After the modification, it is directly deleted and replaced in the original three-dimensional model of the whole vehicle to quickly form a new three-dimensional model of the whole vehicle.

[0063] The three-dimensional models of all the groups are present in the data management system. The data management system is a data sharing system created based on a certain three-dimensional software, and the three-dimensional models created by each group based on the skeleton model can be called by everyone.

[0064] After the new vehicle 3D model is created, the pipeline can be created. First, determine the hydraulic valve interface to which the pipeline is to be connected, determine the starting point and end point of the pipeline, and then create the passing points of the pipeline according to the specific layout of the vehicle to ensure that the pipeline can bypass all interferences and be beautiful and easy to maintain.

[0065] Example 3

[0066] like Figure 2 As shown, the skeleton model-based hydraulic pipeline 3D design method establishes a data management system to uniformly manage all 3D data, making it easy to call each group for 3D rapid assembly to form a 3D complete vehicle.

[0067] The specific implementation method is:

[0068] Step S1: Draw a three-dimensional skeleton model of the vehicle body based on the data management system. The model is given by the overall team members. In this embodiment, in step S1, a three-dimensional skeleton model is established by a three-dimensional software (see Figure 1 ), which is a 3D reference model for assembling the whole vehicle. All subsequent 3D assemblies will refer to this skeleton. This model generally contains but is not limited to the following three reference planes: the front and rear center plane of the vehicle body 1, the left and right center plane of the vehicle body 2, the outer surface of the bottom deck 3 and a whole vehicle coordinate system 4.

[0069] Step S2: Drawing the three-dimensional models of the vehicle body group 5, the brake group, the steering group, the electrical group, etc. (not drawn in three dimensions) based on the three-dimensional skeleton model, which is given by each group;

[0070] In this embodiment, the assembly of each group in step S2 is constructed with reference to the reference plane and reference coordinate system in the skeleton model.

[0071] Step S3: drawing a layout diagram of hydraulic components of the hydraulic system based on the three-dimensional skeleton model, wherein the layout diagram is given by a hydraulic system design team;

[0072] In this embodiment, in step S3, various hydraulic valves, power units, oil filters, and hydraulic system driven devices such as oil and gas springs, etc., except for the hydraulic pipelines, are assembled in the three-dimensional skeleton model according to their respective coordinates. Figure 2 In the figure, hydraulic valve 6 and hydraulic valve 7 are shown as examples;

[0073] Step S4: The hydraulic system designer imports all models and performs three-dimensional assembly to form a layout diagram of the hydraulic system including the power unit, various hydraulic valve groups, etc. on the vehicle body;

[0074] In this embodiment, in step S4, Figure 2 The designer assembles all the 3D models that affect the pipeline layout according to a unified reference. These models are stored in the data management system in advance. If the 3D of a group changes, the corresponding group will modify it in the data management system. After that, the original model is directly deleted in the overall model and replaced with the new model. In this way, the new assembly is completed.

[0075] Step S5: creating a three-dimensional hydraulic pipeline using a three-dimensional software hydraulic pipeline manufacturing method according to the hydraulic principle diagram;

[0076] In this embodiment, in step S5, Figure 3 As shown, taking the creation of a connecting pipeline between two hydraulic valves, namely hydraulic valve 6 and hydraulic valve 7, as an example, first create a starting point P1, and determine the passing points P2, P3, P4...Pn according to the form of the ribs and transverse and longitudinal beams inside the vehicle body to ensure that the pipeline can bypass the transverse and longitudinal beams, and then use the pipeline to make a functional module to connect the pipeline 8.

[0077] Step S6: Draw a pipeline engineering drawing based on the three-dimensional pipeline model, and the engineering drawing is associated with the three-dimensional model.

[0078] Step S7: All the above three-dimensional models exist in the data management system.

[0079] In this embodiment, in step S7, Figure 4 All 3D models shown exist in the data management system. Figure 4 A flow chart of the entire design method is listed.

[0080] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A three-dimensional design method for hydraulic pipelines based on a skeleton model, characterized in that: The skeleton model-based hydraulic pipeline three-dimensional design method includes: Step S1: creating a three-dimensional skeleton model of the vehicle body based on a data management system; Step S2: based on the three-dimensional skeleton model of the vehicle body, draw three-dimensional models of the vehicle body group, brake group, steering group, and electrical group; Step S3: drawing a three-dimensional model of hydraulic components of the hydraulic system based on the three-dimensional skeleton model; Step S4: calling in all the three-dimensional models in the steps S1 to S3, performing three-dimensional assembly, and forming a three-dimensional model of the hydraulic system including the power unit and various hydraulic valve groups on the vehicle body; Step S5: creating a hydraulic pipeline three-dimensional model based on the hydraulic system three-dimensional model by using a three-dimensional software hydraulic pipeline manufacturing method; Step S6: Draw a pipeline engineering drawing based on the hydraulic pipeline three-dimensional model, and the pipeline engineering drawing is associated with the hydraulic pipeline three-dimensional model.

2. The 3D design method for hydraulic pipelines based on skeleton model according to claim 1, characterized in that: The method further comprises: Step S7: All the above three-dimensional models are stored in the data management system.

3. The 3D design method for hydraulic pipelines based on skeleton model according to claim 1, characterized in that: In the step S1, the three-dimensional skeleton model of the vehicle body includes at least three reference planes: the left and right center planes of the vehicle body, the front and rear center planes, and the outer surface of the vehicle body bottom plate.

4. The 3D design method for hydraulic pipelines based on skeleton model according to claim 3, characterized in that: In the step S2, the three-dimensional model of the vehicle body group is a three-dimensional model of the vehicle body itself, and the vehicle body is an enclosure that accommodates personnel, equipment, and facilities.

5. The 3D design method for hydraulic pipelines based on skeleton model according to claim 4, characterized in that: The step S3 draws a layout diagram of hydraulic components of the hydraulic system, specifically, assembling various hydraulic valves, power units, oil filters, and driving devices of the hydraulic system except the hydraulic pipelines in the three-dimensional skeleton model according to their respective coordinates.

6. The 3D design method for hydraulic pipelines based on skeleton model according to claim 5, characterized in that: The driving device includes an oil-gas spring.

7. The 3D design method for hydraulic pipelines based on skeleton model according to claim 5, characterized in that: In step S4, all three-dimensional models are imported, including three-dimensional models of vehicle body group, brake group, steering group, and electrical group, to provide an intuitive three-dimensional basis for designing the three-dimensional model of hydraulic pipelines; When the layout of a group of 3D models changes, the original 3D model is directly deleted and replaced with the new 3D model of this group without affecting other 3D models, because their assembly bases are all elements in the 3D skeleton model and there is no mutual reference. This will greatly improve the design efficiency and enable the pipeline design plan to be modified in a timely and rapid manner.

8. The 3D design method for hydraulic pipelines based on skeleton model according to claim 7, characterized in that: In step S5, no matter how complex the hydraulic pipeline is, it is composed of joints and hard pipe parts at both ends; by first assembling the welding joints on both sides of the hydraulic pipeline in the three-dimensional software, and then creating the starting point, end point, and path point of the hydraulic pipeline, setting the turning radius of the hydraulic pipeline and the inner and outer diameter parameters of the hydraulic pipeline, a three-dimensional model of the hydraulic pipeline is formed.

9. The 3D design method for hydraulic pipelines based on skeleton model according to claim 8, characterized in that: In the three-dimensional model of the hydraulic pipeline formed in step S5, the direction and layout of the hydraulic pipeline and the interference with other vehicle components can be intuitively observed; Once the position of a certain group of devices is changed, the 3D model can be modified in time to see where the interference occurs, so that the hydraulic pipeline can be reselected and redrawn.

10. The 3D design method for hydraulic pipelines based on skeleton model according to claim 9, characterized in that: In step S6, after the hydraulic pipeline three-dimensional model is finally determined, the pipeline engineering drawing is drawn; the pipeline engineering drawing is designed in association with the hydraulic pipeline three-dimensional model, and when the hydraulic three-dimensional model is changed, the pipeline engineering drawing is automatically changed.

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