WO2020252842A1 - Design method based on actual load for tooth surface contact spot of gear - Google Patents
Design method based on actual load for tooth surface contact spot of gear Download PDFInfo
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- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/18—Manufacturability analysis or optimisation for manufacturability
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Definitions
- the invention relates to the field of gear design, in particular to a design method of tooth surface contact spot gear based on actual load.
- the contact spots of bevel gears are one of the important indicators of its transmission performance. Abnormal conditions such as vibration, noise and early fatigue failure can often be reflected from the difference in the shape and position of the contact spots. Therefore, in the gear design stage, the tooth surface is modified. It is one of the indispensable steps of gear design to make the contact spots of the gear pair meet the requirements.
- the industry has always designed contact spots on the premise that the gear is assumed to be a rigid body without elastic deformation.
- the actual inspection of the contact spots is also to apply a thin layer of red lead powder on the detection gear before the inspection, rotate the gear pair under a slight brake, and then observe the distribution result of the tooth surface contact of the measured gear after meshing, if not satisfied Requests are redesigned and manufactured.
- the actual situation is that the gear pair undergoes elastic deformation due to the load, and the position and shape of the designed contact spots will change. In severe cases, premature failure will occur. This is also sometimes especially under high torque conditions.
- the actual life of the gear pair is often lower than one of the factors of the theoretical life.
- the present invention provides a design method for tooth surface contact spot gears based on actual load that can eliminate the influence of elastic deformation on contact spots, achieve the goal of optimizing contact spots in the design stage, and improve the life of gear pairs.
- a design method of tooth surface contact spot gear based on actual load including the following steps:
- Step 1 Determine the 3D model of the straight bevel gear pair after modification according to the empirical formula of tooth profile and tooth direction modification, and complete the assembly of the gear pair;
- Step 2 Complete the finite element contact analysis of the gear pair, respectively determine the contact spots under near zero load and rated load, and use the contact spots under near zero load as theoretical design spots;
- Step 3 Compare the theoretical design spot obtained in Step 2 with the contact spot under rated load to obtain the deviation between the two;
- Step 4 According to the deviation, use the anti-deformation method to correct the theoretical tooth surface, and then complete the corrected three-dimensional model of the gear. According to the corrected three-dimensional model, perform the finite element contact analysis under the rated load to obtain the new corrected contact spot;
- Step 5 Compare the contact spot obtained in step 4 with the theoretical basis spot obtained in step 2. If the deviation of the contact spot obtained in step 4 is within the tolerance, obtain the corrected gear contact spot, otherwise determine the deviation and proceed to the next step ;
- Step 6 According to the new model deviation, repeat Step 5 until the proper contact spot is reached.
- Step 2 Near-zero load is generally taken as 0.1-0.5% of the rated load.
- the maximum value of the elastic deformation threshold used to judge whether the contact is 2.5 ⁇ 10 -5 mm.
- the principle of inverse deformation method modeling is to first advance the coordinate values of all nodes of the theoretical tooth surface in the finite element analysis software, and derive them as the theoretical coordinate text of each node; then obtain the tooth surface under rated load through contact analysis
- the maximum value of the elastic deformation of each node is derived as the text of the elastic deformation of each node; according to the theoretical coordinate text of each node and the text of the elastic deformation of each node, the compensated tooth surface point coordinate data is calculated, and then the tooth surface point coordinate data Import the 3D modeling software to form the compensated tooth surface, and use this tooth surface to intercept the gear blank to obtain the compensated gear model.
- the beneficial effect of the present invention is that the design method of the tooth surface contact spot gear based on the actual load can eliminate the influence of elastic deformation on the contact spot, achieve the purpose of optimizing the contact spot in the design stage, and improve the life of the gear pair.
- a design method of tooth surface contact spot gear based on actual load including the following steps:
- Step 1 Determine the 3D model of the straight bevel gear pair after modification according to the empirical formula of tooth profile and tooth direction modification, and complete the assembly of the gear pair;
- Step 2 Complete the finite element contact analysis of the gear pair, respectively determine the contact spots under near zero load and rated load, and use the contact spots under near zero load as theoretical design spots;
- the near-zero load is generally 0.1-0.5% of the rated load.
- the maximum value of the elastic deformation threshold used to judge whether the contact is 2.5 ⁇ 10 -5 mm.
- the calculation principle of contact spots is: separately calculate the contact stress under different meshing states of gear pairs, that is, different meshing corners, and the elastic deformation of the tooth surface mesh nodes will change with the position of the node and the meshing state of the gear pair. Extract the elastic variables of all mesh nodes of the tooth surface at all meshing corners, compare and analyze, and get the maximum elastic deformation of all mesh nodes. If the maximum elastic deformation of a node is less than 0.005mm, it is considered that the point is not in contact , If the maximum elastic deformation of a node is greater than or equal to 0.005mm, it is considered that the point is in contact. All nodes with the maximum elastic deformation greater than or equal to 0.005mm form the gear pair contact spots, and the largest elastic deformation is the contact center ;
- Step 3 Compare the theoretical design spot obtained in Step 2 with the contact spot under rated load to obtain the deviation between the two;
- Step 4 According to the deviation, use the anti-deformation method to correct the theoretical tooth surface, and then complete the corrected three-dimensional model of the gear. According to the corrected three-dimensional model, perform the finite element contact analysis under the rated load to obtain the new corrected contact spot;
- the modeling principle of the anti-deformation method is to first advance the coordinate values of all the nodes of the theoretical tooth surface in the finite element analysis software, and derive them as the theoretical coordinate text of each node; then use contact analysis to find the maximum elastic deformation of each node of the tooth surface under rated load
- the value is exported as the text of the elastic deformation of each node;
- the coordinate data of the tooth surface point after compensation is obtained according to the theoretical coordinate text of each node and the text of the elastic deformation of each node, and then the tooth surface point coordinate data is imported into the three-dimensional modeling software to form after compensation To obtain the compensated gear model by intercepting the gear blank with this tooth surface;
- Step 5 Compare the contact spot obtained in step 4 with the theoretical basis spot obtained in step 2. If the deviation of the contact spot obtained in step 4 is within the tolerance, obtain the corrected gear contact spot, otherwise determine the deviation and proceed to the next step ;
- Step 6 According to the new model deviation, repeat Step 5 until the proper contact spot is reached.
- the three-dimensional modeling software is UG and the finite element analysis software is ANSYS.
- a method of simulating theoretical contact spots and contact spots under actual loads is proposed, and the process is iterated , The process of optimizing the contact spots is proposed; the method of reverse compensation modeling through elastic deformation is proposed.
Abstract
Disclosed by the present invention is a design method based on actual load for a tooth surface contact spot of gear, comprising the following steps: step 1: determining a 3D model of a pair of straight tooth bevel gears; step 2: determining a contact spot under a near zero load and a contact spot under a rated load, and using the contact spot as a theoretical design spot; step 3: comparing the theoretical design spot obtained in step 2 to the contact spot under the rated load to obtain the deviation therebetween; step 4: obtaining a new amended contact spot; step 5: comparing the contact spot obtained in step 4 to the theoretical design spot obtained in step 2 so as to obtain an amended gear contact spot; step 6: according to the new model deviation, repeating step 5 until a suitable contact spot is obtained; the design method based on actual load for the tooth surface contact spot of a gear, is capable of eliminating the influence of elastic deformation on the contact spot to optimize the contact spot in the design stage, thereby improving the service life of a gear pair.
Description
本发明涉及齿轮设计领域，具体涉及一种基于实际载荷的齿面接触斑点齿轮的设计方法。The invention relates to the field of gear design, in particular to a design method of tooth surface contact spot gear based on actual load.
锥齿轮接触斑点是其传动性能的重要指标之一，振动噪声，提前疲劳失效等异常情况往往能从接触斑点的形状和位置的区别上反映出来，所以，在齿轮设计阶段，通过齿面修形的手段使齿轮副接触斑点达到要求是齿轮设计的必不可少的步骤之一。The contact spots of bevel gears are one of the important indicators of its transmission performance. Abnormal conditions such as vibration, noise and early fatigue failure can often be reflected from the difference in the shape and position of the contact spots. Therefore, in the gear design stage, the tooth surface is modified. It is one of the indispensable steps of gear design to make the contact spots of the gear pair meet the requirements.
然而长期以来，业界一直设计接触斑点的前提是假定齿轮是刚性体，不发生弹性变形。接触斑点的实际检验也是检验前先在检测齿轮上薄薄的涂一层红丹粉，在轻微的制动下转动齿轮副，再观察啮合后被测齿轮齿面接触的分布结果，若不满足要求则重新设计制造。实际情况是，齿轮副由于受载荷作用，齿轮发生弹性变形，设计好的接触斑点就会发生位置和形状的变化，严重者产生提前失效的情况，这也是有的时候特别是大扭矩工况下，齿轮副实际寿命往往低于理论寿命的其中一个因素。从更深的层面说，传统理论设计没有考虑到齿间载荷分布和齿面载荷分布对接触斑点的影响，得出的接触斑点不足以表征实际工况下齿轮副的特性，所以，为了降低振动噪音，提高齿轮副寿命，本专利进行了深入研究。However, for a long time, the industry has always designed contact spots on the premise that the gear is assumed to be a rigid body without elastic deformation. The actual inspection of the contact spots is also to apply a thin layer of red lead powder on the detection gear before the inspection, rotate the gear pair under a slight brake, and then observe the distribution result of the tooth surface contact of the measured gear after meshing, if not satisfied Requests are redesigned and manufactured. The actual situation is that the gear pair undergoes elastic deformation due to the load, and the position and shape of the designed contact spots will change. In severe cases, premature failure will occur. This is also sometimes especially under high torque conditions. The actual life of the gear pair is often lower than one of the factors of the theoretical life. From a deeper level, the traditional theoretical design does not consider the influence of load distribution between teeth and tooth surface load distribution on contact spots. The contact spots obtained are not enough to characterize the characteristics of the gear pair under actual working conditions. Therefore, in order to reduce vibration and noise , To improve the life of the gear pair, this patent has carried out in-depth research.
发明内容Summary of the invention
本发明为了克服上述的不足，提供一种能够消除弹性变形对接触斑点的影 响，达到了在设计阶段优化接触斑点的目的，提高齿轮副寿命的基于实际载荷的齿面接触斑点齿轮的设计方法。In order to overcome the above-mentioned shortcomings, the present invention provides a design method for tooth surface contact spot gears based on actual load that can eliminate the influence of elastic deformation on contact spots, achieve the goal of optimizing contact spots in the design stage, and improve the life of gear pairs.
本发明通过以下技术方案来实现上述目的：The present invention achieves the above objectives through the following technical solutions:
一种基于实际载荷的齿面接触斑点齿轮的设计方法，包括以下步骤：A design method of tooth surface contact spot gear based on actual load, including the following steps:
步骤一：根据齿廓齿向修形经验公式确定修形后直齿锥齿轮副3D模型，并完成齿轮副装配；Step 1: Determine the 3D model of the straight bevel gear pair after modification according to the empirical formula of tooth profile and tooth direction modification, and complete the assembly of the gear pair;
步骤二：将齿轮副完成有限元接触分析，分别确定近零载荷下和额定载荷下的接触斑点，将近零载荷下的接触斑点作为理论设计斑点；Step 2: Complete the finite element contact analysis of the gear pair, respectively determine the contact spots under near zero load and rated load, and use the contact spots under near zero load as theoretical design spots;
步骤三：将步骤二得到的理论设计斑点和与额定载荷下的接触斑点比较，得到两者偏差；Step 3: Compare the theoretical design spot obtained in Step 2 with the contact spot under rated load to obtain the deviation between the two;
步骤四：根据偏差，利用反变形法修正理论齿面，进而完成修正后的齿轮三维模型，根据修正后的三维模型进行额定载荷下有限元接触分析，得到新的修正后的接触斑点；Step 4: According to the deviation, use the anti-deformation method to correct the theoretical tooth surface, and then complete the corrected three-dimensional model of the gear. According to the corrected three-dimensional model, perform the finite element contact analysis under the rated load to obtain the new corrected contact spot;
步骤五：将步骤四得到的接触斑点与步骤二得到的理论基础斑点相比较，若步骤四得到的接触斑点偏差在容忍偏差之内，则获得修正的齿轮接触斑点，否则确定偏差，进行下一步；Step 5: Compare the contact spot obtained in step 4 with the theoretical basis spot obtained in step 2. If the deviation of the contact spot obtained in step 4 is within the tolerance, obtain the corrected gear contact spot, otherwise determine the deviation and proceed to the next step ；
步骤六：根据新的模型偏差，重复步骤五，直到合适的接触斑点。Step 6: According to the new model deviation, repeat Step 5 until the proper contact spot is reached.
优选的，步骤二中：近零载荷一般取额定载荷的0.1-0.5％，在用近零载荷求理论接触斑点时，用于判断是否接触的弹性变形最大值之阀值为2.5×10
-5mm。
Preferably, in step 2: Near-zero load is generally taken as 0.1-0.5% of the rated load. When the theoretical contact spot is calculated with near-zero load, the maximum value of the elastic deformation threshold used to judge whether the contact is 2.5×10 -5 mm.
优选的，步骤四中：反变形法建模原理是首先在有限元分析软件中分别提前理论齿面所有节点坐标值，导出为各节点理论坐标文本；然后通过接触分析求出额定载荷下齿面各节点的弹性变形量最大值，导出为各节点弹性变形量文 本；根据各节点理论坐标文本和各节点弹性变形量文本求出补偿后的齿面点坐标数据，然后将该齿面点坐标数据导入三维造型软件形成补偿后的齿面，用此齿面截取齿轮毛坯即可得到补偿后的齿轮模型。Preferably, in step four: the principle of inverse deformation method modeling is to first advance the coordinate values of all nodes of the theoretical tooth surface in the finite element analysis software, and derive them as the theoretical coordinate text of each node; then obtain the tooth surface under rated load through contact analysis The maximum value of the elastic deformation of each node is derived as the text of the elastic deformation of each node; according to the theoretical coordinate text of each node and the text of the elastic deformation of each node, the compensated tooth surface point coordinate data is calculated, and then the tooth surface point coordinate data Import the 3D modeling software to form the compensated tooth surface, and use this tooth surface to intercept the gear blank to obtain the compensated gear model.
本发明的有益效果是：该基于实际载荷的齿面接触斑点齿轮的设计方法，能够消除弹性变形对接触斑点的影响，达到了在设计阶段优化接触斑点的目的，提高齿轮副寿命。The beneficial effect of the present invention is that the design method of the tooth surface contact spot gear based on the actual load can eliminate the influence of elastic deformation on the contact spot, achieve the purpose of optimizing the contact spot in the design stage, and improve the life of the gear pair.
现在对本发明作进一步详细的说明。The present invention will now be described in further detail.
实施例1：Example 1:
一种基于实际载荷的齿面接触斑点齿轮的设计方法，包括以下步骤：A design method of tooth surface contact spot gear based on actual load, including the following steps:
步骤一：根据齿廓齿向修形经验公式确定修形后直齿锥齿轮副3D模型，并完成齿轮副装配；Step 1: Determine the 3D model of the straight bevel gear pair after modification according to the empirical formula of tooth profile and tooth direction modification, and complete the assembly of the gear pair;
步骤二：将齿轮副完成有限元接触分析，分别确定近零载荷下和额定载荷下的接触斑点，将近零载荷下的接触斑点作为理论设计斑点；Step 2: Complete the finite element contact analysis of the gear pair, respectively determine the contact spots under near zero load and rated load, and use the contact spots under near zero load as theoretical design spots;
近零载荷一般取额定载荷的0.1-0.5％，在用近零载荷求理论接触斑点时，用于判断是否接触的弹性变形最大值之阀值为2.5×10
-5mm。
The near-zero load is generally 0.1-0.5% of the rated load. When the theoretical contact spot is calculated with near-zero load, the maximum value of the elastic deformation threshold used to judge whether the contact is 2.5×10 -5 mm.
其中，接触斑点的计算原理是：分别计算在齿轮副不同啮合状态下,即不同的啮合转角下的接触应力，齿面网格节点弹性变形量将会随节点位置和齿轮副啮合状态发生变化，提取齿面所有网格节点在所有啮合转角下的弹性变量，比较分析，得出所有网格节点弹性变形量的最大值，若某节点弹性变形量最大值小于0.005mm，则认为该点不接触，若某节点弹性变形量最大值大于等于0.005mm，则认为该点接触，所有弹性变形量最大值大于等于0.005mm的节点组 成齿轮副接触斑点，在其中弹性变形量最大值最大者为接触中心；Among them, the calculation principle of contact spots is: separately calculate the contact stress under different meshing states of gear pairs, that is, different meshing corners, and the elastic deformation of the tooth surface mesh nodes will change with the position of the node and the meshing state of the gear pair. Extract the elastic variables of all mesh nodes of the tooth surface at all meshing corners, compare and analyze, and get the maximum elastic deformation of all mesh nodes. If the maximum elastic deformation of a node is less than 0.005mm, it is considered that the point is not in contact , If the maximum elastic deformation of a node is greater than or equal to 0.005mm, it is considered that the point is in contact. All nodes with the maximum elastic deformation greater than or equal to 0.005mm form the gear pair contact spots, and the largest elastic deformation is the contact center ；
步骤三：将步骤二得到的理论设计斑点和与额定载荷下的接触斑点比较，得到两者偏差；Step 3: Compare the theoretical design spot obtained in Step 2 with the contact spot under rated load to obtain the deviation between the two;
步骤四：根据偏差，利用反变形法修正理论齿面，进而完成修正后的齿轮三维模型，根据修正后的三维模型进行额定载荷下有限元接触分析，得到新的修正后的接触斑点；Step 4: According to the deviation, use the anti-deformation method to correct the theoretical tooth surface, and then complete the corrected three-dimensional model of the gear. According to the corrected three-dimensional model, perform the finite element contact analysis under the rated load to obtain the new corrected contact spot;
反变形法建模原理是首先在有限元分析软件中分别提前理论齿面所有节点坐标值，导出为各节点理论坐标文本；然后通过接触分析求出额定载荷下齿面各节点的弹性变形量最大值，导出为各节点弹性变形量文本；根据各节点理论坐标文本和各节点弹性变形量文本求出补偿后的齿面点坐标数据，然后将该齿面点坐标数据导入三维造型软件形成补偿后的齿面，用此齿面截取齿轮毛坯即可得到补偿后的齿轮模型；The modeling principle of the anti-deformation method is to first advance the coordinate values of all the nodes of the theoretical tooth surface in the finite element analysis software, and derive them as the theoretical coordinate text of each node; then use contact analysis to find the maximum elastic deformation of each node of the tooth surface under rated load The value is exported as the text of the elastic deformation of each node; the coordinate data of the tooth surface point after compensation is obtained according to the theoretical coordinate text of each node and the text of the elastic deformation of each node, and then the tooth surface point coordinate data is imported into the three-dimensional modeling software to form after compensation To obtain the compensated gear model by intercepting the gear blank with this tooth surface;
步骤五：将步骤四得到的接触斑点与步骤二得到的理论基础斑点相比较，若步骤四得到的接触斑点偏差在容忍偏差之内，则获得修正的齿轮接触斑点，否则确定偏差，进行下一步；Step 5: Compare the contact spot obtained in step 4 with the theoretical basis spot obtained in step 2. If the deviation of the contact spot obtained in step 4 is within the tolerance, obtain the corrected gear contact spot, otherwise determine the deviation and proceed to the next step ；
步骤六：根据新的模型偏差，重复步骤五，直到合适的接触斑点。Step 6: According to the new model deviation, repeat Step 5 until the proper contact spot is reached.
本专利中，三维造型软件为UG，有限元分析软件为ANSYS，充分利用三维造型软件UG和有限元分析软件ANSYS，提出了模拟理论接触斑点和实际载荷下的接触斑点的方法，并通过过程迭代，提出了优化接触斑点的流程；提出了过弹性变形反向补偿建模的方法。In this patent, the three-dimensional modeling software is UG and the finite element analysis software is ANSYS. By making full use of the three-dimensional modeling software UG and the finite element analysis software ANSYS, a method of simulating theoretical contact spots and contact spots under actual loads is proposed, and the process is iterated , The process of optimizing the contact spots is proposed; the method of reverse compensation modeling through elastic deformation is proposed.
上述依据本发明为启示，通过上述的说明内容，相关工作人员完全可以在不偏离本项发明技术思想的范围内，进行多样的变更以及修改。本项发明的技 术性范围并不局限于说明书上的内容，必须要根据权利要求范围来确定其技术性范围。The above is enlightenment based on the present invention, and through the above description, the relevant staff can make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims (3)
- 一种基于实际载荷的齿面接触斑点齿轮的设计方法，其特征在于：包括以下步骤：A design method of tooth surface contact spot gear based on actual load is characterized in that it includes the following steps:步骤一：根据齿廓齿向修形经验公式确定修形后直齿锥齿轮副3D模型，并完成齿轮副装配；Step 1: Determine the 3D model of the straight bevel gear pair after modification according to the empirical formula of tooth profile and tooth direction modification, and complete the assembly of the gear pair;步骤二：将齿轮副完成有限元接触分析，分别确定近零载荷下和额定载荷下的接触斑点，将近零载荷下的接触斑点作为理论设计斑点；Step 2: Complete the finite element contact analysis of the gear pair, respectively determine the contact spots under near zero load and rated load, and use the contact spots under near zero load as theoretical design spots;步骤三：将步骤二得到的理论设计斑点和与额定载荷下的接触斑点比较，得到两者偏差；Step 3: Compare the theoretical design spot obtained in Step 2 with the contact spot under rated load to obtain the deviation between the two;步骤四：根据偏差，利用反变形法修正理论齿面，进而完成修正后的齿轮三维模型，根据修正后的三维模型进行额定载荷下有限元接触分析，得到新的修正后的接触斑点；Step 4: According to the deviation, use the anti-deformation method to correct the theoretical tooth surface, and then complete the corrected three-dimensional model of the gear. According to the corrected three-dimensional model, perform the finite element contact analysis under the rated load to obtain the new corrected contact spot;步骤五：将步骤四得到的接触斑点与步骤二得到的理论基础斑点相比较，若步骤四得到的接触斑点偏差在容忍偏差之内，则获得修正的齿轮接触斑点，否则确定偏差，进行下一步；Step 5: Compare the contact spot obtained in step 4 with the theoretical basis spot obtained in step 2. If the deviation of the contact spot obtained in step 4 is within the tolerance, obtain the corrected gear contact spot, otherwise determine the deviation and proceed to the next step ；步骤六：根据新的模型偏差，重复步骤五，直到合适的接触斑点。Step 6: According to the new model deviation, repeat Step 5 until the proper contact spot is reached.
- 根据权利要求1所述的基于实际载荷的齿面接触斑点齿轮的设计方法，其特征在于：步骤二中：近零载荷一般取额定载荷的0.1-0.5％，在用近零载荷求理论接触斑点时，用于判断是否接触的弹性变形最大值之阀值为2.5×10 -5mm。 The method of designing a tooth surface contact spot gear based on actual load according to claim 1, characterized in that: in step two: the near-zero load is generally 0.1-0.5% of the rated load, and the theoretical contact spot is calculated with the near-zero load The threshold used to determine the maximum elastic deformation of contact is 2.5×10 -5 mm.
- 根据权利要求1所述的基于实际载荷的齿面接触斑点齿轮的设计方法，其特征在于：步骤四中：反变形法建模原理是首先在有限元分析软件中分别提前理论齿面所有节点坐标值，导出为各节点理论坐标文本；然后通过接触分析求出额定载荷下齿面各节点的弹性变形量最大值，导出为各节点弹性变形量文 本；根据各节点理论坐标文本和各节点弹性变形量文本求出补偿后的齿面点坐标数据，然后将该齿面点坐标数据导入三维造型软件形成补偿后的齿面，用此齿面截取齿轮毛坯即可得到补偿后的齿轮模型。The design method of tooth surface contact speckled gear based on actual load according to claim 1, characterized in that: in step four: the principle of anti-deformation modeling is to first advance the coordinates of all the nodes of the theoretical tooth surface in the finite element analysis software. The value is derived as the theoretical coordinate text of each node; then the maximum elastic deformation of each node of the tooth surface under rated load is obtained by contact analysis, and it is derived as the text of the elastic deformation of each node; according to the theoretical coordinate text of each node and the elastic deformation of each node Calculate the coordinate data of the compensated tooth surface point from the volume text, and then import the coordinate data of the tooth surface point into the 3D modeling software to form the compensated tooth surface. Use this tooth surface to intercept the gear blank to obtain the compensated gear model.
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| CN116663156A (en) * | 2023-07-10 | 2023-08-29 | 陕西法士特齿轮有限责任公司 | Microcosmic modification method and microcosmic modification system for tooth surface of cylindrical gear of transmission |
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| CN112548032B (en) * | 2020-12-02 | 2022-11-15 | 北京航星机器制造有限公司 | Casting method based on three-dimensional scanning |
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| CN107066684A (en) * | 2017-02-15 | 2017-08-18 | 淮阴工学院 | A kind of gear pair engages the finite element method of spot |
| CN108488353A (en) * | 2018-03-06 | 2018-09-04 | 上汽通用汽车有限公司 | Correction method for straight bevel gear |
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