A low-temperature circulation rapeseed dryer assembly parametric design system and method

Abstract

The present invention discloses a low-temperature circulation rapeseed dryer assembly parametric design system and method, which relates to the field of mechanical design technology. The system includes a slow-release layer design module, a drying layer external design module, a drying layer internal design module, a hoist design module, a supporting steel frame and grain discharge mechanism design module, a ladder and guardrail design module, a general assembly module, a model design module, and a file saving module; the method includes selecting the required design model, giving the overall height parameters, load and number of groups of the dryer, the system automatically saves and runs the recommended algorithm to update the number of layers design parameters; selecting a design mode; designing components and subassemblies according to the selected mode; updating sketches and generating components; after completing the component design, entering the general assembly design and automatically generating the general assembly of the dryer; saving files; generating and saving two-dimensional drawings. The present invention effectively standardizes the dryer design process, shortens the dryer design time, and improves the design efficiency and quality.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical design, and in particular to an assembled parametric design system and method for a low-temperature circulating rapeseed dryer. Background Art

[0002] At present, most grain drying companies use general CAD software such as CAXA, AutoCAD, CATIA, UG, etc. to manually draw 2D sketches in the dryer design process, and then make detailed modifications after 3D modeling. Due to the complexity of the dryer structure, the traditional 2D CAD design method cannot accurately and intuitively express the functional parts such as the drying chamber of the dryer. Although large-scale general 3D CAD software is powerful, it has problems such as low specificity, forcing users to use approximate processing and a large number of manual repetitive operations in the dryer design process, which seriously affects the design efficiency and quality. From the design results, general CAD drawing software is mostly designed based on points, lines, surfaces, and bodies. The existing die-casting mold runner design methods and auxiliary design systems are still greatly deficient in supporting the conceptual design and innovative design of runner products. As Academician Xie Youbai of Xi'an Jiaotong University pointed out, the traditional CAD system is based on geometric features as the process-dominated, which is inconsistent with the actual design process. In dryer design, the disadvantages of traditional CAD design methods are mainly manifested in:

[0003] I. The implementation process of each module of the dryer requires designers to perform a lot of repeated operations, which is inefficient;

[0004] II. Designs dominated by traditional geometric features such as points, lines, and surfaces have little differentiation, the design methods of different designers cannot be unified, and the design information expression is scattered and incomplete;

[0005] III. Subsequent expansion design that is not conducive to the dryer design, such as the recommended design, etc. Summary of the invention

[0006] Based on the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a low-temperature circulation rapeseed dryer assembly parametric design system and method to solve the above-mentioned technical problems.

[0007] To achieve the above object, the present invention provides the following technical solutions: a low-temperature circulation rapeseed dryer assembly parametric design system, including: a slow-release layer design module, a drying layer outer design module, a drying layer inner design module, a hoist design module, a support steel frame and grain discharge mechanism design module, a ladder and guardrail design module, a general assembly module, a model design module, and a file saving module;

[0008] The buffer layer design module is used to design and generate the top gusset plate and the flat plate standard layer 2;

[0009] The drying layer external design module is used to design and generate the air outlet gusset plate, the flat standard layer 1, the air outlet square straight pipe and the square-to-square and air inlet duct;

[0010] The drying layer internal design module is used to design and generate the air inlet inner pull plate and the air exhaust inner pull plate;

[0011] The elevator design module is used to design and generate the first section of the elevator barrel, the second section of the elevator, the third, fourth and fifth sections of the elevator, the sixth section of the elevator, a circulating hopper, a forward material port and a discharge buffer box, and to assemble the first section of the elevator barrel, the second section of the elevator, the third, fourth and fifth sections of the elevator and the sixth section of the elevator to generate the elevator;

[0012] The support steel frame and grain discharge mechanism design module is used to design and generate a second-layer flat plate assembly, a second-layer gusset plate front, a pneumatic discharge tee, a dust removal air network pipeline assembly and a lower support steel frame;

[0013] The ladder and guardrail design module is used to design and generate the fuselage ladder and the top platform;

[0014] The general assembly module includes a layer number design unit and a general assembly unit; the layer number design unit is used to save the design parameters according to the designed first drying layer number, second drying layer number, slow-resuspension layer number and elevator section number; the general assembly unit is used to perform array processing of the upper drying layer of the dryer, the lower drying layer, the slow-resuspension layer and the third, fourth and fifth sections of the elevator according to the design parameters saved by the layer number design unit, and then assemble the components and sub-assemblies of all the designed modules into the general assembly file to form the general assembly of the dryer;

[0015] The model design module includes a model selection unit and a recommended design unit; the model selection unit is used to provide three basic models for the designer to choose from, and after the selection is completed, a preview of the selected model is displayed, and the design interface is switched according to the selected model; the recommended design unit is used to perform a recommended algorithm design according to the parameters given by the designer, and automatically update the default size parameters displayed in the component and subassembly design interface; wherein the given parameters include the selected model, dryer load, overall sense of the dryer, and the number of dryers in the dryer group;

[0016] The file saving module is used to save the designed dryer and two-dimensional drawing according to the file path and folder name selected by the designer, or to directly save the designed dryer and two-dimensional drawing.

[0017] A method for the assembly type parametric design of a low-temperature circulation rapeseed dryer is applied to the above-mentioned assembly type parametric design system of a low-temperature circulation rapeseed dryer, comprising:

[0018] Step 1: Select the required design model, choose one of the three basic models, and proceed to step 2. If you do not select a model, you cannot proceed to the next step of design;

[0019] Step 2: Given the overall height parameters of the designed dryer, the dryer load and the number of dryers in the dryer group, the system automatically saves the parameters, runs the recommended algorithm, and automatically updates the parameters related to the number of layers design;

[0020] Step 3: Select the design mode;

[0021] Step 3.1: Design modes include custom design, module design and recommended design. In custom design mode, the designer can choose to design the design interface of components and subassemblies and the overall assembly interface. In module design mode, all design modules in the system can be designed in modules. In recommended design mode, all components and subassemblies are presented in sequence according to the preset design order. The next design can only be carried out after the design of the previous component and subassembly is completed. At the same time, the design will be automatically saved after completion. If you need to modify the parameters of the previous step or steps, you can return to the desired design interface by closing the current design window.

[0022] Step 3.2: Component and subassembly design module, update the sketch according to the recommended size or the self-designed size and set the screw holes at a fixed spacing, generate the designed components and subassemblies through stretching, stretching cutting, lofting or drafting;

[0023] Step 4: After the design of components and parts is completed, enter the general assembly design module, design the number of layers in the general assembly module, and after determining the number of layers, click automatic assembly to generate the general assembly of the dryer;

[0024] Step 5: Save the file; save the assembly file as required or directly save the overall assembly;

[0025] Step 6: Update and generate the 2D drawing; after the design of each component and assembly is completed, select the 2D drawing generation. At the same time, after the overall assembly is completed, you can also generate the 2D drawing of all designed components and sub-assemblies or the 2D drawing of specified components and sub-assemblies in the corresponding 2D drawing generation interface, and support save as processing.

[0026] The present invention is further configured such that the recommendation algorithm in step 2 is based on the .net Framework 4 framework and the SolidWorks secondary development API and the equation of the model, including:

[0027] Step 2.1: Obtain the required parameters for model selection and recommended design through the combo box and text controls, and save them locally. Perform layer design and length and width design recommendations for flat standard layer 1 and flat standard layer 2 through the recommendation function, update the key dimensions of length and width of flat standard layer 1 and flat standard layer 2, and synchronize all parameters related to the length and width of flat standard layer 1 and flat standard layer 2, that is, the relevant parameters on the design interface.

[0028] The present invention is further configured that the design of components and subassemblies in step 3.1 is based on the .netFramework4 framework and the SolidWorks secondary development API, including:

[0029] Step 3.1.1: The consistency of the design of the components and subassemblies is ensured by single-threaded processing and singleton mode design, and the uniqueness of key dimensions is determined by local static constants;

[0030] Step 3.1.2: Ensure real-time preservation and updating of design results through the generation functions defined in each design interface and the update functions of the design interfaces of components and subassemblies where key dimensions are located.

[0031] The present invention is further configured that the module for designing components and subassemblies and the overall assembly module in step 3.2 are based on the .net Framework 4 framework and the SolidWorks secondary development API, and further include:

[0032] Step 3.2.1: Through the text control and combo box control of the winform dialog box, for key dimensions during design, the background recommendation algorithm automatically updates the associated key dimensions based on the key dimensions that have been designed first. The system obtains the set parameters, and after the design is completed, the design parameters are obtained through the parameters of the text control and saved to the background;

[0033] Step 3.2.2: Query the sketch size information through the access function, and regenerate the component through the model reconstruction function according to the parameter information saved after the design is completed;

[0034] Step 3.2.3: After the design is confirmed, enter the next design interface and repeat the above design process. When the design of components and sub-assemblies is completed, enter the overall assembly design process.

[0035] The present invention is further configured that the two-dimensional graph generation in step 6 is based on the .net Framework 4 framework and the SolidWorks secondary development API, including:

[0036] Step 6.1: Design components and subassemblies, and click the Generate button on the interface after completion;

[0037] Step 6.2: Click the 2D view button on the design interface where the components and subassemblies are located;

[0038] Through the file open function, the corresponding two-dimensional drawing is opened, and the settings of the two-dimensional drawing are automatically updated by changing the three-dimensional model using SolidWorks, the two-dimensional drawing generation is completed, and the file save function is called to save it.

[0039] The present invention is further configured to include:

[0040] After generating the two-dimensional graph, extracting geometric features from the two-dimensional graph, and establishing a weight function according to the geometric features;

[0041] Compare the extracted geometric features with the theoretical design values ​​and calculate the parameter matching degree of the geometric features;

[0042] Calculate the construction score of the two-dimensional graph based on the weight function and parameter matching;

[0043] When the construction score is greater than or equal to a preset construction score threshold, the two-dimensional graph generation is valid; when the construction score is less than the preset construction score threshold, the two-dimensional graph generation is invalid and is regenerated.

[0044] The present invention is further configured such that the geometric features include important structural dimensions, assembly hole diameters, assembly gap dimension tolerances, assembly errors, and relative positions of components.

[0045] The present invention is further configured such that the establishment logic of the weight function is: Among them, ω(p i ) is the weight of the i-th geometric feature, p i is the value of the i-th geometric feature, p pref,i is the expected value of the i-th geometric feature, p max,i and p min,i are the maximum and minimum values ​​of the i-th geometric feature, respectively; k1 and k2 are adjustment factors used to balance the influence weights; α is the parameter sensitivity adjustment factor used to control the slope of the weight function;

[0046] The calculation logic of the parameter matching degree of geometric features is: Among them, M(p i ) is the parameter matching degree of the i-th geometric feature, λ is the factor for adjusting the matching sensitivity, which is used to control the influence of the deviation degree on the parameter matching degree;

[0047] The calculation logic of the construction score of the two-dimensional graph is: Among them, S is the construction score of the two-dimensional graph, and n is the number of geometric features.

[0048] The present invention provides a low-temperature circulation rapeseed dryer assembly parametric design system and method, the method comprises step 1: selecting a desired design model, selecting one from three basic models, and entering step 2, and the next design step cannot be entered without selecting a model; step 2: given the overall height parameters of the designed dryer, the dryer load and the number of dryers in the drying unit, the system automatically saves the parameters, and the recommended algorithm runs, and automatically updates the relevant parameters of the layer number design; step 3: selecting a design mode; step 3.1: the design mode includes custom design, module design and recommended design; in the custom design mode, the component and subassembly design interface and the general assembly interface are designed by the designer at his / her own choice; in the module design mode, all design modules in the system can be designed in modules; in the recommended design mode, all components and subassemblies are presented in sequence according to a preset design order, and the next design can be carried out only after the design of the previous component and subassembly is completed, and the design is automatically saved after the design is completed, and the interface that needs to be modified Change the parameters of the previous step or the previous steps, and return to the required design interface by closing the current design window; Step 3.2: In the component and sub-assembly design module, update the sketch according to the recommended size or the self-designed size, and set the screw holes at a fixed spacing. Generate the designed components and sub-assemblies through stretching, stretching cutting, lofting or drafting; Step 4: After the design of components and parts is completed, enter the general assembly design module, design the number of layers in the general assembly module, and after determining the number of layers, click automatic assembly to generate the dryer general assembly; Step 5: File saving; save the assembly file as required or save the general assembly directly; Step 6: Update and generate the two-dimensional drawing; after the design of each component and assembly is completed, select the two-dimensional drawing generation. At the same time, after the general assembly is completed, you can also generate the two-dimensional drawings of all designed components and sub-assemblies or the two-dimensional drawings of specified components and sub-assemblies in the corresponding two-dimensional drawing generation interface, support save as processing, and the beneficial effects include:

[0049] 1. Improve the consistency and controllability of the assembly process: Through parametric design and modular assembly, the present invention can ensure the standardized design and assembly of each component;

[0050] 2. Enhanced design flexibility and scalability: The parametric design system of the present invention provides a variety of design modes, including custom design, modular design and recommended design, which designers can flexibly choose according to actual needs. At the same time, the recommended design mode combines the optimization algorithm of multi-dimensional parameters, which can automatically adjust the design parameters to meet the requirements of different loads and dryer sizes, ensuring that the system has good flexibility and scalability and is suitable for a variety of application scenarios;

[0051] 3. Improve model design efficiency: The present invention is designed to meet the needs of rapid design and assembly of rapeseed drying machines, simplifying highly repetitive modeling operations, and ensuring the security and uniformity of resources through file processing functions, thereby improving model design efficiency;

[0052] 4. Optimize design quality: The present invention can quickly and accurately evaluate the quality of the design by automatically extracting geometric features from the two-dimensional graph and constructing a weight function, combined with the matching calculation of geometric parameters. When the score does not meet the preset construction score threshold, the system will automatically regenerate or adjust the design parameters to ensure that the final generated design quality reaches the best state, thereby effectively improving the accuracy and reliability of the dryer assembly.

[0053] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0055] Figure 1 It is a structural schematic diagram of an assembled parametric design system of a low-temperature circulation rapeseed dryer according to an exemplary embodiment of the present invention;

[0056] Figure 2 A flow chart of a method for parametric design of a low-temperature circulation rapeseed dryer assembly according to an exemplary embodiment of the present invention;

[0057] Figure 3 A schematic diagram of a model selection and recommended design page of a low-temperature circulation rapeseed dryer assembly parametric design method according to an exemplary embodiment of the present invention;

[0058] Figure 4 A schematic diagram of a custom design interface of a low-temperature circulation rapeseed dryer assembly parametric design method is shown as an exemplary embodiment of the present invention;

[0059] Figure 5 A schematic diagram of a module design interface of a low-temperature circulation rapeseed dryer assembly parametric design method is shown as an exemplary embodiment of the present invention;

[0060] Figure 6A schematic diagram of an equation for an assembled parametric design method of a low-temperature circulation rapeseed dryer is shown as an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0061] The following will describe the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0062] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0063] In the following description, numerous details are discussed to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0064] Through object-oriented programming methods, the various modules of dryer design are encapsulated to form various dryer design classes, including the digital information of dryer parts and sub-assembly geometric elements and the integration of design information. The communication between these encapsulated feature classes is carried out by setting the properties of each feature class method, thus forming a dryer model library and structural design library with a certain hierarchy and system; and the communication with the outside world uses the human-computer interaction menu tool created by the winform window under the .netFramework4.0 framework, and realizes the communication between the dryer feature unit and the SolidWorks platform through the application programming interface API (ApplicationProgramming Interface), completing the instantiation expression of the dryer design information.

[0065] Embodiment 1

[0066] A parametric design system for the assembly of low-temperature circulating rapeseed dryers, such as Figure 1 As shown, including:

[0067] Softening layer design module, drying layer external design module, drying layer internal design module, elevator design module, supporting steel frame and grain discharge mechanism design module, ladder and guardrail design module, general assembly module, model design module, file saving module;

[0068] The buffer layer design module is used to design and generate the top gusset plate and the flat plate standard layer 2;

[0069] The drying layer external design module is used to design and generate the air outlet gusset plate, the flat standard layer 1, the air outlet square straight pipe and the square-to-square and air inlet duct;

[0070] The drying layer internal design module is used to design and generate the air inlet inner pull plate and the air exhaust inner pull plate;

[0071] The elevator design module is used to design and generate the first section of the elevator barrel, the second section of the elevator, the third, fourth and fifth sections of the elevator, the sixth section of the elevator, a circulating hopper, a forward material port and a discharge buffer box, and to assemble the first section of the elevator barrel, the second section of the elevator, the third, fourth and fifth sections of the elevator and the sixth section of the elevator to generate the elevator;

[0072] The support steel frame and grain discharge mechanism design module is used to design and generate a second-layer flat plate assembly, a second-layer gusset plate front, a pneumatic discharge tee, a dust removal air network pipeline assembly and a lower support steel frame;

[0073] The ladder and guardrail design module is used to design and generate the fuselage ladder and the top platform;

[0074] The general assembly module includes a layer number design unit and a general assembly unit; the layer number design unit is used to save the design parameters according to the designed first drying layer number, second drying layer number, slow-resuspension layer number and elevator section number; the general assembly unit is used to perform array processing of the upper drying layer of the dryer, the lower drying layer, the slow-resuspension layer and the third, fourth and fifth sections of the elevator according to the design parameters saved by the layer number design unit, and then assemble the components and sub-assemblies of all the designed modules into the general assembly file to form the general assembly of the dryer;

[0075] The model design module includes a model selection unit and a recommended design unit; the model selection unit is used to provide three basic models for the designer to choose from, and after the selection is completed, a preview of the selected model is displayed, and the design interface is switched according to the selected model; the recommended design unit is used to perform a recommended algorithm design according to the parameters given by the designer, and automatically update the default size parameters displayed in the component and subassembly design interface; wherein the given parameters include the selected model, dryer load, overall sense of the dryer, and the number of dryers in the dryer group;

[0076] The file saving module is used to save the designed dryer and two-dimensional drawing according to the file path and folder name selected by the designer, or to directly save the designed dryer and two-dimensional drawing.

[0077] Specifically, the buffer layer design module includes: a top gusset plate design unit and a flat plate standard layer 2 design unit;

[0078] The drying layer outer design module includes: an air outlet gusset plate design unit, a flat plate standard layer 1 design unit, an air outlet square straight pipe and square-to-square design unit, and an air inlet duct design unit;

[0079] The drying layer internal design module includes: a drying layer internal pull plate (air inlet) unit and a drying layer internal pull plate (air exhaust) unit;

[0080] The elevator design module includes: the first section design unit of the elevator barrel, the elevator assembly design unit, the circulating hopper design unit, the front feed port and the discharge buffer box design unit;

[0081] The support steel frame and grain discharge mechanism design module includes: a two-layer flat plate assembly design unit, a two-layer gusset plate front design unit, a pneumatic discharge tee design unit, a dust removal air network pipeline assembly design unit, and a lower support steel frame design unit;

[0082] The ladder and guardrail design module includes: a body ladder and top platform assembly design unit;

[0083] The general assembly module includes: a layer number design unit and a general assembly unit;

[0084] The model design module includes: a model selection unit and a recommended design unit;

[0085] The file saving module includes: a file saving unit;

[0086] The top gusset plate design unit first generates a top gusset plate boss that matches the given gusset plate width, and its assembly holes that match the top gusset plate, selects the assembly hole spacing according to the screw diameter used, and then assembles it to the top gusset plate; then, according to the given length, sets the number of top gusset plate assembly bosses, and then generates the top gusset plate by sketch stretching and stretching cutting;

[0087] The flat plate standard layer 2 design unit first generates the bosses of the flat plate standard layer 2 and the assembly holes of the flat plate for the given flat plate width, selects the assembly hole spacing according to the screw diameter, and then assembles it to the flat plate standard layer 2; then, according to the given length, sets the number of assembly bosses of the flat plate standard layer 2, and then generates the flat plate standard layer 2 through sketch stretching and stretching cutting;

[0088] The air outlet gusset design unit is the gusset of the 6th layer from the bottom to the top of the drying layer of the dryer. It is named as the air outlet gusset because it is located at the air outlet. According to the given gusset width, the gusset and gusset connector sketch stretching operation is performed. The gusset connector cannot change its size too much, so the assembly method is fixed and feasible. According to the given gusset length, the array design of the gusset boss is performed. The boss and gusset assembly design are adjusted according to the gusset width. The air outlet reserved hole is generated according to the given parameters, and then the air outlet gusset is generated by stretching and stretching the sketch;

[0089] The flat plate standard layer 1 design unit determines the width of the flat plate standard layer 2 by itself, generates the flat plate standard layer 1 bosses and the assembly holes matched with the flat plate for the given flat plate width, selects the assembly hole spacing according to the screw diameter used, and then assembles it to the flat plate standard layer 1 and sets the number of assembly bosses of the flat plate standard layer 1 according to the given length, and then generates the flat plate standard layer 1 through sketch stretching and stretching cutting;

[0090] The square straight pipe and square-to-square design unit of the air outlet performs the square-to-square layout processing according to the given parameters, and then performs the stretching processing of the square straight pipe according to the given parameters, and then assembles the two components together to generate the square straight pipe and square-to-square of the air outlet;

[0091] The air inlet duct design unit is divided into two parts: square-to-square design and duct design. In the square-to-square design part, the top surface is square and the bottom surface is rectangular, and then the drafting process is performed. Then, according to the size of the bottom and top surfaces, a hemming is extended with a fixed width to generate the air inlet square-to-square; in the duct design part, according to the given parameters, the length of the air inlet tee and the speed box is designed, and the cross-section of the duct completed by the square top surface of the square-to-square design is designed, and then the air inlet duct is generated through stretching.

[0092] The inner pull plate (air inlet) of the drying layer is designed according to the given parameters for the air inlet array and the shape of the air inlet. The screw connection is designed according to the shape of the formed air inlet. The adaption boss is designed according to the given pull plate length and width, and then the inner pull plate of the air inlet is generated by stretching and stretching cutting.

[0093] The inner pull plate (exhaust) of the drying layer is designed according to the given parameters for the exhaust vent array design and the exhaust vent shape design. The screw connection design is adaptively performed according to the shape of the formed air inlet. The exhaust vent needs to be slightly larger than the air inlet to ensure the positive pressure of the drying chamber and thus ensure that the rapeseed in the drying chamber can be dried in a slightly suspended state. The exhaust vent also needs to be lower than the air inlet to ensure that the hot air stays in the drying chamber for a longer time. The adaptive boss design is performed according to the given pull plate length and width, and then the exhaust inner pull plate is generated by stretching and stretching cutting.

[0094] The first section of the elevator barrel is designed according to the given parameters. The dust removal air net dust discharge hole matching port is designed, and the elevator body channel is stretched and cut according to the given parameters. At the same time, according to the given parameters, the top and bottom surfaces of the first section of the elevator barrel are edged, and finally the first section of the elevator barrel is generated by stretching.

[0095] The hoist assembly design unit includes the design of the second section of the hoist, the design of the third, fourth and fifth sections of the hoist, and the design of the sixth section of the hoist. According to the given parameters, the heights of the second section of the hoist and the third, fourth and fifth sections of the hoist are determined, and the overall height of the sixth section of the hoist and the position height of the two hemming edges that match the machine top maintenance platform are determined. Then, the shape of the designed hoist body is determined according to the first section of the hoist barrel, that is, the hemming of the bottom and top surfaces determined in the first section of the hoist barrel, and the shapes of the second section of the hoist, the third, fourth and fifth sections of the hoist, and the sixth section of the hoist are determined, and then the hoist assembly unit is generated by stretching processing;

[0096] The circulating hopper design unit confirms the sketch drawing according to the given angle and overall height, and automatically generates the corresponding hemming after confirming the given top surface length. Then the circulating hopper is generated through stretching and drafting.

[0097] The front feed inlet and discharge buffer box design unit determines the sketch size according to the given angle size, the length size of the front feed inlet and the discharge buffer box matching surface, the length size of the front feed inlet and the discharge buffer box, the length size of the top surface of the front feed box and the length size of the bottom surface of the discharge buffer box, and performs stretching and stretching cutting to generate the front feed inlet and the discharge buffer box;

[0098] The two-layer plate set design unit directly determines the length of the two-layer plate according to the length of the designed plate standard layer 2, determines the position of the observation port on the two-layer plate sketch according to the set size, determines the number of arrays of bosses adapted to the two-layer plate according to the set length of the two-layer plate, and then generates the two-layer plate set by stretching and stretching and cutting.

[0099] The position and array number of the gusset plate bosses are determined according to the set gusset plate length and the position size of the gusset plate bosses. The size of the grain discharge gear observation hole is determined according to the set size. According to the symmetry rule of the built-in gear observation hole, the 2-layer gusset plate front is generated after stretching and stretching cutting.

[0100] The pneumatic discharge tee is a schematic model of the actual selected tee. All its dimensions can be set through the parametric interface, among which the three matching surfaces of the tee are the most important. The pneumatic discharge tee is generated by stretching according to the dimensions of the three designed matching surfaces.

[0101] The dust removal air network duct assembly determines the total length of the duct according to the designed length dimension, determines the sketch dimension according to the designed exhaust port positioning dimension and duct cross-sectional dimension, and generates an adaptive hemming on the duct mating surface after stretching and stretching cutting, thereby generating the dust removal air network duct assembly;

[0102] The lower support steel frame is first stretched to generate four support legs of the steel frame according to the height dimension of the designed lower support steel frame, the angle of the supported steel frame and the installation position dimension, and then stretched at the positioning position of the designed oblique support steel frame to generate the oblique support steel frame, and then generate the lower support steel frame;

[0103] The fuselage ladder and top platform assembly are designed according to the guardrail height, the platform length of the left and right top platforms.

[0104] and platform width, after stretching and stretching cutting, the machine body ladder and machine top platform matching the dryer are generated;

[0105] The layer number design unit is based on the designed first drying layer number, second drying layer number, slow-recovery layer number and elevator section number, which facilitates the subsequent array processing of the upper drying layer of the dryer, the lower drying layer, the slow-recovery layer and the 345th section of the elevator. This design module will save the designed parameters;

[0106] The general assembly unit performs array processing of the upper drying layer, lower drying layer, slow-release layer and the third, fourth and fifth sections of the elevator according to the parameters saved when designing the number of layers, and then assembles the components and subassemblies of all the modules designed previously into the general assembly file, thereby forming the general assembly of the dryer;

[0107] The model selection unit provides three basic models for the designer to choose from. After the selection is completed, a preview of the model will be displayed, and the design interface will be switched according to the selected model.

[0108] The recommended design unit refers to the recommended algorithm design based on the parameters given by the designer (selected model, dryer load, overall sense of the dryer, number of dryers in the dryer group), and automatically updates the default size parameters displayed in the component and subassembly design interface.

[0109] The file saving unit performs save-as processing on the designed dryer and its two-dimensional drawing according to the file path and folder name selected by the designer, and can also choose to directly save the designed dryer and the two-dimensional drawing.

[0110] Embodiment 2

[0111] See also Figure 2The exemplary method for the assembly parametric design of a low-temperature circulation rapeseed dryer is applied to the above-mentioned assembly parametric design system of a low-temperature circulation rapeseed dryer, such as Figure 2 As shown, including:

[0112] Step 1: Select the required design model, such as Figure 3 As shown, one of the three basic models is selected to enter step 2. If the model is not selected, the next step of design cannot be entered; specifically, in a feasible embodiment of the present invention, the three basic models include 50Y, 20A and 30B;

[0113] Step 2: Given the overall height parameters of the designed dryer, the dryer load and the number of dryers in the dryer group, the system automatically saves the parameters, runs the recommended algorithm, and automatically updates the parameters related to the number of layers design;

[0114] Step 3: Select the design mode;

[0115] Step 3.1: If Figure 4-5 As shown, the design modes include custom design, module design and recommended design. In the custom design mode, the designer can choose to design the component and subassembly design interface and the overall assembly interface. In the module design mode, all design modules in the system can be designed in modules. In the recommended design mode, all components and subassemblies are presented in sequence according to the preset design sequence. The next design can only be carried out after the design of the previous component and subassembly is completed. At the same time, the design will be automatically saved after completion. If you need to modify the parameters of the previous step or the previous steps, you can return to the desired design interface by closing the current design window.

[0116] Step 3.2: Component and subassembly design modules, such as Figure 6 As shown, the sketch is updated according to the recommended size or the self-designed size, and the screw holes are set at a fixed interval. The designed parts and subassemblies are generated through stretching, stretching cutting, lofting or drafting.

[0117] Step 4: After the design of components and parts is completed, enter the general assembly design module, design the number of layers in the general assembly module, and after determining the number of layers, click automatic assembly to generate the general assembly of the dryer;

[0118] Step 5: Save the file; save the assembly file as required or directly save the overall assembly;

[0119] Step 6: Update and generate the 2D drawing; after the design of each component and assembly is completed, select the 2D drawing generation. At the same time, after the overall assembly is completed, you can also generate the 2D drawing of all designed components and sub-assemblies or the 2D drawing of specified components and sub-assemblies in the corresponding 2D drawing generation interface, and support save as processing.

[0120] The present invention is further configured such that the recommendation algorithm in step 2 is based on the .net Framework 4 framework and the SolidWorks secondary development API and the equation of the model, including:

[0121] Step 2.1: Obtain the required parameters for model selection and recommended design through the combo box and text controls, and save them locally. Perform layer design and length and width design recommendations for flat standard layer 1 and flat standard layer 2 through the recommendation function, update the key dimensions of length and width of flat standard layer 1 and flat standard layer 2, and synchronize all parameters related to the length and width of flat standard layer 1 and flat standard layer 2, that is, the relevant parameters on the design interface.

[0122] The present invention is further configured that the design of components and subassemblies in step 3.1 is based on the .netFramework4 framework and the SolidWorks secondary development API, including:

[0123] Step 3.1.1: The consistency of the design of the components and subassemblies is ensured by single-threaded processing and singleton mode design, and the uniqueness of key dimensions is determined by local static constants;

[0124] Step 3.1.2: Ensure real-time preservation and updating of design results through the generation functions defined in each design interface and the update functions of the design interfaces of components and subassemblies where key dimensions are located.

[0125] The present invention is further configured that the module for designing components and subassemblies and the overall assembly module in step 3.2 are based on the .net Framework 4 framework and the SolidWorks secondary development API, and further include:

[0126] Step 3.2.1: Through the text control and combo box control of the winform dialog box, for key dimensions during design, the background recommendation algorithm automatically updates the associated key dimensions based on the key dimensions that have been designed first. The system obtains the set parameters, and after the design is completed, the design parameters are obtained through the parameters of the text control and saved to the background;

[0127] Step 3.2.2: Query the sketch dimension information through the access function, and regenerate the component through the model reconstruction function according to the parameter information saved after the design is completed; specifically, in step 3.2.2, it also includes a verification step: verify whether the generated component meets the critical dimension matching, if it does, execute step 3.2.3, otherwise, return to step 3.2.1; further, the critical dimension matching is whether the designed components and subassemblies meet the input critical dimension parameters. If the critical dimensions meet the expected design, you can continue to execute the subsequent steps. If not, you need to return to the previous step (step 3.2.1) to redesign or modify these critical dimensions;

[0128] Step 3.2.3: After the design is confirmed, enter the next design interface and repeat the above design process. When the design of components and sub-assemblies is completed, enter the overall assembly design process.

[0129] The present invention is further configured that the two-dimensional graph generation in step 6 is based on the .net Framework 4 framework and the SolidWorks secondary development API, including:

[0130] Step 6.1: Design components and subassemblies, and click the Generate button on the interface after completion;

[0131] Step 6.2: Click the 2D view button on the design interface where the components and subassemblies are located;

[0132] Through the file open function, the corresponding two-dimensional drawing is opened, and the settings of the two-dimensional drawing are automatically updated by changing the three-dimensional model using SolidWorks, the two-dimensional drawing generation is completed, and the file save function is called to save it.

[0133] The present invention is further configured to include:

[0134] After the two-dimensional graph is generated, geometric features are extracted from the two-dimensional graph, and a weight function is established according to the geometric features; the present invention is further configured that the geometric features include important structural dimensions, assembly hole diameters, assembly gap dimension tolerances, assembly errors, and relative positions of components; the logic for establishing the weight function is: Among them, ω(p i ) is the weight of the i-th geometric feature, p i is the value of the i-th geometric feature, p pref,i is the expected value of the i-th geometric feature, p max,i and p min,iare the maximum and minimum values ​​of the ith geometric feature, respectively; k1 and k2 are adjustment factors used to balance the influence weight; α is the parameter sensitivity adjustment factor used to control the slope of the weight function; specifically, the important structural dimensions refer to the geometric dimensions of each key component in the dryer or assembly equipment, including parameters such as length, width, height, thickness, etc.; the assembly hole diameter refers to the diameter of the hole used to assemble and connect components. Assembly holes are usually used to connect different components together through fasteners such as bolts and pins; the assembly gap size tolerance refers to the allowable deviation range of the gap between two adjacent or connected components. It is usually used to measure whether there is enough space between components to ensure smooth assembly and normal operation; assembly error refers to the deviation of component position or size caused by manufacturing tolerances or inaccurate assembly processes during the assembly process; the relative position of components refers to the spatial relationship between two or more components during the assembly process, including parallelism, verticality, coaxiality, etc.; for each geometric feature parameter, a formula is used to define the weight function, which reflects the importance of a certain geometric feature to the overall design evaluation. The weight function not only takes into account the deviation between the parameter and the expected value, but also combines the maximum and minimum values ​​of the parameter to ensure the comprehensiveness and objectivity of the evaluation. The construction of the weight function includes two parts: the first part adopts the Sigmoid function form to control the deviation between the parameter value and the expected value; the second part reflects the range of the parameter value in the form of a square to ensure that the parameters closer to the maximum or minimum value receive extra attention; the parameter sensitivity adjustment factor α controls the slope of the Sigmoid function in the weight function, and the value range is [0,10]. The larger the parameter, the higher the sensitivity of the weight to the deviation; the adjustment factors k1 and k2 affect the balance of the weights of the two parts respectively, which are positive numbers and sum to 1. By combining the weight and matching degree of the geometric features, the importance of each feature in the overall design can be more accurately evaluated to ensure that the design meets the expected standards; the weight function introduces two balancing parts to avoid excessive influence of certain extreme parameters in the design on the score, and ensures the balance and stability of the overall design;

[0135] The extracted geometric features are compared with the theoretical design values ​​to calculate the parameter matching degree of the geometric features. The calculation logic of the parameter matching degree of the geometric features is: Among them, M(p i ) is the parameter matching degree of the i-th geometric feature, λ is the factor for adjusting the matching sensitivity, which is used to control the influence of the deviation degree on the parameter matching degree; specifically, the above calculation logic is used to calculate the parameter matching degree of the geometric feature, that is, to measure the deviation degree between the extracted geometric feature value and the theoretical design value. The exponential decay of the deviation is calculated to evaluate the suitability of each feature. The formula is calculated by comparing the actual parameter p i The expected value p pref,i, combined with the range of maximum and minimum values, determine whether the feature is within a reasonable range, and control the sensitivity by adjusting the coefficient λ to obtain the final matching result; the factor λ for adjusting the matching sensitivity is used to control the sensitivity of parameter deviation to matching. The larger the value, the higher the sensitivity of matching to deviation. The value range is [0,1]. By calculating the parameter matching, the deviation degree of each geometric feature from the design value can be accurately quantified, making the design evaluation more scientific and accurate.

[0136] The construction score of the two-dimensional graph is calculated according to the weight function and the parameter matching degree; the calculation logic of the construction score of the two-dimensional graph is: Among them, S is the construction score of the two-dimensional graph, and n is the number of geometric features; specifically, the above calculation logic is used to calculate the construction score of the two-dimensional graph, and the overall construction score of the two-dimensional graph is obtained by summing the product of the weight function and the matching degree of each geometric feature. This score is used to evaluate the overall quality of the two-dimensional graph design. The higher the score, the closer the design is to the expected goal; through the combination of weight function and matching degree, the importance and accuracy of each geometric feature can be comprehensively evaluated to ensure that the final score can accurately reflect the quality of the design; the introduction of weight function makes different features have different influences in the total score, and designers can flexibly adjust the importance of features according to actual needs, so as to better meet the design goals.

[0137] When the build score is greater than or equal to the preset build score threshold, the two-dimensional map generation is valid; when the build score is less than the preset build score threshold, the two-dimensional map generation is invalid and is regenerated. Specifically, when the build score is less than the threshold, the system will return to the design process, adjust the design parameters or regenerate the two-dimensional map. The design parameters can be automatically updated through the feedback mechanism (such as re-adjusting the size, position or assembly tolerance of geometric features), and the build score can be calculated again until the design meets the standard; through the preset build score threshold, the design evaluation can be completed automatically. Without manual judgment, the system objectively measures the design quality through the scoring algorithm to ensure that all designs meet the predetermined standards; through the scoring mechanism, the shortcomings in the design are quickly identified, especially those geometric features that fail to meet the expected values, thereby speeding up the design optimization process. Designers do not need to check all features one by one, and can directly locate the parts that need improvement based on the score.

[0138] It should be noted that the low-temperature circulation rapeseed dryer assembly parametric design system provided in the above embodiment and the low-temperature circulation rapeseed dryer assembly parametric design method provided in the above embodiment belong to the same concept, wherein the specific manner in which each module and unit performs the operation has been described in detail in the method embodiment and will not be repeated here. In actual application, the low-temperature circulation rapeseed dryer assembly parametric design system provided in the above embodiment can distribute the above functions to different functional modules as needed, that is, divide the internal structure of the system into different functional modules to complete all or part of the functions described above, and this is not limited here.

[0139] The above embodiments can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented by software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that contains one or more available media sets. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state hard disk.

[0140] It should be understood that the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship, but it may also indicate an "and / or" relationship. Please refer to the context for specific understanding.

[0141] In this application, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can be represented by: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0142] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0143] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0144] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0145] In the several embodiments provided in the present application, it should be understood that the disclosed system can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0146] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0147] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0148] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks.

[0149] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A low-temperature circulation rapeseed dryer assembly parametric design system, characterized in that: include: Softening layer design module, drying layer external design module, drying layer internal design module, elevator design module, supporting steel frame and grain discharge mechanism design module, ladder and guardrail design module, general assembly module, model design module, file saving module; The buffer layer design module is used to design and generate the top gusset plate and the second flat plate standard layer; The drying layer outer design module is used to design and generate the air outlet gusset plate, the first flat plate standard layer, the air outlet square straight pipe and the square-to-square and air inlet duct; The drying layer internal design module is used to design and generate the air inlet inner pull plate and the air exhaust inner pull plate; The elevator design module is used to design and generate the first section of the elevator barrel, the second section of the elevator, the third, fourth and fifth sections of the elevator, the sixth section of the elevator, a circulating hopper, a forward material port and a discharge buffer box, and to assemble the first section of the elevator barrel, the second section of the elevator, the third, fourth and fifth sections of the elevator and the sixth section of the elevator to generate the elevator; The support steel frame and grain discharge mechanism design module is used to design and generate a second-layer flat plate assembly, a second-layer gusset plate front, a pneumatic discharge tee, a dust removal air network pipeline assembly and a lower support steel frame; The ladder and guardrail design module is used to design and generate the fuselage ladder and the top platform; The general assembly module includes a layer number design unit and a general assembly unit; the layer number design unit is used to save the design parameters according to the designed first drying layer number, second drying layer number, slow recovery layer number and elevator section number; The general assembly unit is used to perform array processing of the upper drying layer, the lower drying layer, the slow-release layer and the third, fourth and fifth sections of the elevator of the dryer according to the design parameters saved by the layer design unit, and then assemble the components and sub-assemblies of all designed modules into the general assembly file to form the general assembly of the dryer; The model design module includes a model selection unit and a recommended design unit; the model selection unit is used to provide three basic models for the designer to choose from, and after the selection is completed, a preview of the selected model is displayed, and the design interface is switched according to the selected model; the recommended design unit is used to perform a recommended algorithm design according to the parameters given by the designer, and automatically update the default size parameters displayed in the component and subassembly design interface; wherein the given parameters include the selected model, dryer load, overall height of the dryer and the number of dryers in the dryer group; The file saving module is used to save the designed dryer and two-dimensional drawing according to the file path and folder name selected by the designer, or to directly save the designed dryer and two-dimensional drawing.

2. A method for the assembly parametric design of a low-temperature circulation rapeseed dryer, applied to the assembly parametric design system of a low-temperature circulation rapeseed dryer according to claim 1, characterized in that: include: Step 1: Select the required design model, choose one of the three basic models, and proceed to step 2. If you do not select a model, you cannot proceed to the next step of design; Step 2: Given the overall height parameters of the designed dryer, the dryer load and the number of dryers in the dryer group, the system automatically saves the parameters, runs the recommended algorithm, and automatically updates the parameters related to the number of layers design; Step 3: Select the design mode; Step 3.1: Design patterns include custom design, modular design and recommended design; In the custom design mode, the component and sub-assembly design interface and the overall assembly interface are designed by the designer. In the modular design mode, all design modules in the system can be designed separately; In the recommended design mode, all parts and subassemblies are presented in the preset design order. The next design can be carried out only after the design of the previous part and subassembly is completed. At the same time, the design will be automatically saved after completion. If you need to modify the parameters of the previous step or steps, you can return to the desired design interface by closing the current design window. Step 3.2: Component and subassembly design module, update the sketch according to the recommended size or the self-designed size and set the screw holes at a fixed spacing, generate the designed components and subassemblies through stretching, stretching cutting, lofting or drafting; Step 4: After the design of components and parts is completed, enter the general assembly design module, design the number of layers in the general assembly module, and after determining the number of layers, click automatic assembly to generate the general assembly of the dryer; Step 5: Save the file; save the assembly file as required or directly save the overall assembly; Step 6: Update and generate the 2D drawing; after the design of each component and assembly is completed, select the 2D drawing generation. At the same time, after the overall assembly is completed, generate the 2D drawing of all designed components and sub-assemblies or the 2D drawing of specified components and sub-assemblies in the corresponding 2D drawing generation interface, and support save as processing.

3. The method for assembly parametric design of a low-temperature circulation rapeseed dryer according to claim 2, characterized in that: The recommendation algorithm in step 2 is based on the .net Framework 4 framework and the SolidWorks secondary development API as well as the model equation, including: Step 2.1: Obtain the required parameters for model selection and recommended design through the combo box and text controls, and save them locally. Use the recommendation function to design the number of layers and recommend the length and width design of the first flat plate standard layer and the second flat plate standard layer, and update the key dimensions of the length and width of the first flat plate standard layer and the second flat plate standard layer. Synchronize all parameters related to the length and width of the first flat plate standard layer and the second flat plate standard layer, that is, the relevant parameters on the design interface.

4. The method for assembly parametric design of a low-temperature circulation rapeseed dryer according to claim 2, characterized in that: The design of components and subassemblies in step 3.1 is based on the .net Framework 4 framework and SolidWorks secondary development API, including: Step 3.1.1: The consistency of the design of the components and subassemblies is ensured by single-threaded processing and singleton mode design, and the uniqueness of key dimensions is determined by local static constants; Step 3.1.2: Ensure real-time preservation and updating of design results through the generation functions defined in each design interface and the update functions of the design interfaces of components and subassemblies where key dimensions are located.

5. The method for assembly parametric design of a low-temperature circulation rapeseed dryer according to claim 2, characterized in that: The module for component and subassembly design and the overall assembly module in step 3.2 are based on the .net Framework 4 framework and SolidWorks secondary development API, and also include: Step 3.2.1: Through the text control and combo box control of the winform dialog box, for key dimensions during design, the background recommendation algorithm automatically updates the associated key dimensions based on the key dimensions that have been designed first. The system obtains the set parameters, and after the design is completed, the design parameters are obtained through the parameters of the text control and saved to the background; Step 3.2.2: Query the sketch size information through the access function, and regenerate the component through the model reconstruction function according to the parameter information saved after the design is completed; Step 3.2.3: After the design is confirmed, enter the next design interface and repeat the above steps 3.2.1 to 3.2.2 design process. When the design of components and sub-assemblies is completed, enter the overall assembly design process.

6. The method for assembly parametric design of a low-temperature circulation rapeseed dryer according to claim 2, characterized in that: The two-dimensional diagram generation in step 6 is based on the .net Framework 4 framework and the SolidWorks secondary development API, including: Step 6.1: Design components and subassemblies, and click the Generate button on the interface after completion; Step 6.2: Click the 2D view button on the design interface where the components and subassemblies are located; Through the file open function, the corresponding two-dimensional drawing is opened, and the settings of the two-dimensional drawing are automatically updated by changing the three-dimensional model using SolidWorks, the two-dimensional drawing generation is completed, and the file save function is called to save it.

7. The method for assembly parametric design of a low-temperature circulation rapeseed dryer according to claim 2, characterized in that: Also includes: After generating the two-dimensional graph, extracting geometric features from the two-dimensional graph, and establishing a weight function according to the geometric features; Compare the extracted geometric features with the theoretical design values ​​and calculate the parameter matching degree of the geometric features; Calculate the construction score of the two-dimensional graph based on the weight function and parameter matching; When the construction score is greater than or equal to a preset construction score threshold, the two-dimensional graph generation is valid; When the construction score is less than a preset construction score threshold, the generation of the two-dimensional graph is invalid and is regenerated.

8. The method for assembly parametric design of a low-temperature circulation rapeseed dryer according to claim 7, characterized in that: The geometric features include important structural dimensions, assembly hole diameters, assembly gap size tolerances, assembly errors and relative positions of components.

9. The method for assembly parametric design of a low-temperature circulation rapeseed dryer according to claim 8, characterized in that: The logic of establishing the weight function is: ,in, For the The weight of the geometric features, For the The value of the geometric features, For the The expected value of a geometric feature, and Respectively The maximum and minimum values ​​of geometric features, and is an adjustment factor used to balance the impact weights, is the parameter sensitivity adjustment factor, which is used to control the slope of the weight function; The calculation logic of the parameter matching degree of geometric features is: ,in, For the The parameter matching degree of geometric features, It is a factor to adjust the sensitivity of matching, used to control the influence of deviation on parameter matching; The calculation logic of the construction score of the two-dimensional graph is: ,in, Score the construction of the 2D graph, is the number of geometric features.

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