WO2021179561A1 - 一种农机齿轮修形加工工艺 - Google Patents
一种农机齿轮修形加工工艺 Download PDFInfo
- Publication number
- WO2021179561A1 WO2021179561A1 PCT/CN2020/115239 CN2020115239W WO2021179561A1 WO 2021179561 A1 WO2021179561 A1 WO 2021179561A1 CN 2020115239 W CN2020115239 W CN 2020115239W WO 2021179561 A1 WO2021179561 A1 WO 2021179561A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gear
- tooth
- order
- agricultural machinery
- order gear
- Prior art date
Links
- 230000004048 modification Effects 0.000 title claims abstract description 46
- 238000012986 modification Methods 0.000 title claims abstract description 46
- 238000003754 machining Methods 0.000 title abstract description 6
- 238000005070 sampling Methods 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000010862 gear shaping Methods 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005255 carburizing Methods 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 5
- 230000000171 quenching effect Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000004364 calculation method Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
Definitions
- the invention relates to a gear shaping process, in particular to an agricultural machinery gear shaping process.
- the purpose of the present invention is to provide an agricultural machinery gear shaping process.
- the invention can not only reduce gear running noise, but also has the advantage of less gear wear.
- an agricultural machinery gear modification machining process which is characterized in that it comprises the following steps:
- the rough part is normalized, rough-processed and shaped, and then hobbed or shaving to obtain a first-order gear
- the data set is A;
- the offset data of each sampling point on the above, the data set is D;
- the cutting surfaces of the gear hobbing cutter and the gear shaving cutter are arranged in an arc-shaped convex shape, and the convex distance of the middle part is 0.1 ⁇ 0.2mm.
- the weighted average comparison method in step e is to first place the second-order gear vertically between the parallel light source and the industrial camera to take a picture, and record each wheel on the second-order gear. Tooth shape data, the data set is B; then compare B and A by corresponding to the same position of the same gear, and use the proportional coefficient between the value in B and the value in A, and then combine the positions of each tooth to the root circle Calculate the deformation deviation coefficient H of the tooth shape data by the weighted average method.
- the modification constant coefficient is 4.1.
- the modification constant coefficient is 6.5.
- the heat treatment in step d is carburizing and quenching.
- the present invention improves the existing agricultural machinery gear shaping process, by taking photos of the first-order gears obtained by semi-finishing machining (hobbing or shaving), and taking photos by parallel light and industrial cameras.
- the data set is A; then measure the pitch circle diameter of the first-order gear that has not undergone heat treatment and has not been deformed and the average gear transmission torque on the gear teeth, and calculate accurately
- the tangential force W t during the operation of the standard gear is obtained;
- the second-order gear is obtained after heat treatment on the first-order gear, and the deformation coefficient H of the tooth shape data generated by the heat treatment is calculated by the weighted average comparison method, and the calculation of each wheel
- the heat treatment deformation deviation at each position of the tooth is obtained as the data set C; then the tooth direction load distribution coefficient C m of the gear contact strength of the second-order gear whose surface properties have changed after heat treatment is measured and calculated, which is more suitable for the actual gear during processing
- the offset of the sampling points at the remaining positions on the tooth profile is calculated, and then the interpolation or fitting method is used to obtain a more accurate modification curve to make the modification curve
- the continuity is strong, and the modification is more accurate; the modified agricultural gear can prevent unbalanced load, which is beneficial to the formation of oil film on the gear surface, and the noise is small during operation; the load change during the operation of the gear is small, and the gear wear is relatively small. small.
- the blade faces of the gear hobbing cutter and the gear shaving cutter are arranged in an arc shape, so that the gear hobbing or shaving can be
- the arc is protruding and smoothed, so that a relatively flat tooth surface is processed, and the deformation difference at different positions of the tooth surface during the later heat treatment is reduced, which is convenient for subsequent calculations;
- the weighted average comparison method is to first deform multiple groups after heat treatment Take pictures of the second-order gears (you can set mark points on the first-order gears so that the positions and angles of the agricultural machinery gears are the same when taking pictures twice), and accurately learn the shape data of the second-order gears, the data set is B; correspondingly For the same gear tooth at the same position, through the proportional coefficient between the value in B and the value in A, combined with the distance from each position of each gear tooth to the tooth root circle, the gear tooth shape data deformation deviation coefficient
- the modification of agricultural machinery can further make the modification of agricultural machinery gears more accurate (when used in the driving wheel, the modification constant coefficient is small; when used in the driven wheel, the modification constant coefficient is large), so as to reduce noise and reduce wear
- the first-order gear adopts carburizing and quenching, which can reduce the degree of deformation while ensuring the surface properties of the finished agricultural machinery, thereby reducing the amount of calculation of the subsequent second-order gear modification. Therefore, the present invention can not only reduce gear running noise, but also has the advantages of less gear wear and higher production efficiency.
- Example 1 An agricultural machinery gear shaping process, including the following steps:
- the rough part is normalized, rough-processed and shaped, and then hobbed or shaving to obtain a first-order gear
- the data set is A;
- the offset data of each sampling point on the above, the data set is D;
- the cutting surfaces of the gear hobbing cutter and the gear shaving cutter are arranged in an arc-shaped convex shape, and the protrusion distance of the middle part is 0.1-0.2mm; the weighted average comparison in the step e
- the method is to first place the second-order gear vertically between the parallel light source and the industrial camera to take a picture, and record the shape data of each tooth on the second-order gear.
- the data set is B; then by corresponding to the same position of the same gear, compare B and A.
- the gear tooth shape data deformation deviation coefficient H is calculated by the weighted average method; the modified product When the agricultural machinery gear is used as the driving wheel, the modification constant coefficient is 4.1; when the finished agricultural machinery gear is used as the driven wheel, the modification constant coefficient is 6.5; the heat treatment in the step d is carburizing and quenching.
- Example 2 An agricultural machinery gear shaping process, including the following steps:
- the rough part is normalized, rough-processed and shaped, and then hobbed or shaving to obtain a first-order gear
- the data set is A;
- the offset data of each sampling point on the above, the data set is D;
- the cutting surfaces of the gear hobbing cutter and the gear shaving cutter are arranged in an arc-shaped convex shape, and the protrusion distance of the middle part is 0.2mm;
- the weighted average contrast method in step e is , First place the second-order gear vertically between the parallel light source and the industrial camera to take a picture, record the shape data of each tooth on the second-order gear, and the data set is B; then compare B and A by corresponding to the same position of the same gear, Through the proportional coefficient between the value in B and the value in A, combined with the distance from each position of each gear tooth to the root circle, the gear tooth shape data deformation deviation coefficient H is calculated by the weighted average method;
- the finished agricultural gear When used as a driving wheel, the modification constant coefficient is 4.1; when the finished agricultural gear is used as a driven wheel, the modification constant coefficient is 6.5;
- the heat treatment in the step d is carburizing and quenching.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Numerical Control (AREA)
Abstract
Description
Claims (6)
- 一种农机齿轮修形加工工艺,其特征在于,包括以下步骤:a、将毛坯件经过正火处理,粗加工成型,滚齿或剃齿加工后得到一阶齿轮;b、将一阶齿轮竖直放置在平行光源和工业相机之间进行拍照,记录一阶齿轮上各个轮齿的形状数据,数据集合为A;c、测量一阶齿轮上的节圆直径d,d的单位为mm;测量并计算二阶齿轮上各个轮齿的平均齿轮传递扭矩T,T的单位为N·mm;并根据计算出切向力W t,W t=2T/d;d、对一阶齿轮进行热处理,得二阶齿轮;e、通过加权平均对比法计算热处理产生的轮齿形状数据变形偏差系数H,计算各个轮齿各个位置的热处理变形偏差量,得到的数据集合为C;f、测量并计算二阶齿轮上的齿轮接触强度的齿向载荷分布系数C m,C m=W max/W m,其中W max为单位齿宽的最大载荷,W m为单位齿宽的平均载荷;g、根据A,在一阶齿轮的轮齿的齿廓位置处设置多个采样点,多个采样点中至少包括三个位于齿顶圆、分度圆和齿根圆位置处的采样点;接着计算得出一阶齿轮的齿顶修形量X,X=NC mW t/(10 5b),X的单位为mm,其中N为修形常量系数,b为齿宽单位为mm;将所有的采样点沿其对应处的渐开线法线方向进行偏移,位于齿顶圆位置处的采样点偏移量为X,从而得到其余所有采样点的偏移量;整合所有轮齿上各个采样点的偏移量数据,数据集合为D;h、将D内的数据和C内对应轮齿上各个采样点的数据相加,得到二阶齿轮上齿廓各个采样点位置处的偏移量数据集合E;对数据集 合E中同一轮齿齿廓上的各个采样点的偏移量数据通过插值法或拟合法构建成一条修形曲线,修形曲线沿着齿宽方向掠过得到修形后的曲面;重复上述操作得到二阶齿轮上各个轮齿修形后的三维模型;i、将二阶齿轮修形后的三维模型输入数控机床,并将二阶齿轮放置在数控机床上,使得数控机床对二阶齿轮上对应的各个轮齿进行修形,得成品农机齿轮。
- 根据权利要求1所述的一种农机齿轮修形加工工艺,其特征在于:所述步骤a中的滚齿或剃齿中,滚齿刀和剃齿刀的刀面呈弧形凸出设置,中部的凸出距离为0.1~0.2mm。
- 根据权利要求1所述的一种农机齿轮修形加工工艺,其特征在于:所述步骤e中的加权平均对比法为,先将二阶齿轮竖直放置在平行光源和工业相机之间进行拍照,记录二阶齿轮上各个轮齿的形状数据,数据集合为B;接着通过对应相同齿轮相同位置,对比B和A,通过B内的数值与A内的数值之间的比例系数,再结合各个轮齿各个位置到齿根圆的距离,通过加权平均法计算出轮齿形状数据变形偏差系数H。
- 根据权利要求1所述的一种农机齿轮修形加工工艺,其特征在于:所述成品农机齿轮用作主动轮时,修形常量系数为4.1。
- 根据权利要求1所述的一种农机齿轮修形加工工艺,其特征在于:所述成品农机齿轮用作从动轮时,修形常量系数为6.5。
- 根据权利要求1所述的一种农机齿轮修形加工工艺,其特征在于:所述步骤d中的热处理为渗碳淬火。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010156372.9A CN111299982B (zh) | 2020-03-09 | 2020-03-09 | 一种农机齿轮修形加工工艺 |
CN202010156372.9 | 2020-03-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021179561A1 true WO2021179561A1 (zh) | 2021-09-16 |
Family
ID=71153490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2020/115239 WO2021179561A1 (zh) | 2020-03-09 | 2020-09-15 | 一种农机齿轮修形加工工艺 |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN111299982B (zh) |
WO (1) | WO2021179561A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114048560A (zh) * | 2021-10-28 | 2022-02-15 | 长安大学 | 一种零承载传动误差幅值螺旋锥齿轮齿面主动Ease-off修形方法 |
CN114880800A (zh) * | 2022-05-16 | 2022-08-09 | 沈阳工业大学 | 一种用于改善齿面偏载的综合齿轮修形方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111299982B (zh) * | 2020-03-09 | 2022-01-25 | 浙江丰安齿轮股份有限公司 | 一种农机齿轮修形加工工艺 |
CN112059082B (zh) * | 2020-09-11 | 2022-08-09 | 汉德车桥(株洲)齿轮有限公司 | 渐开线花键键齿修形设计方法和加工方法及其齿轮产品 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006242211A (ja) * | 2005-02-28 | 2006-09-14 | Mitsubishi Heavy Ind Ltd | 伝動歯車及びその製作方法 |
CN103302464A (zh) * | 2013-06-26 | 2013-09-18 | 天津市天瑞硬化工程有限公司 | 轿车变速器齿轮抗疲劳制造方法 |
CN103909390A (zh) * | 2014-03-12 | 2014-07-09 | 苏州锻压厂有限责任公司 | 一种风能发电机齿轮的制造方法 |
CN106695265A (zh) * | 2017-01-20 | 2017-05-24 | 常州市格里森前进齿轮有限公司 | 一种齿轮修形方法 |
CN107025367A (zh) * | 2017-06-05 | 2017-08-08 | 太原理工大学 | 基于轮齿热弹性变形和齿轮歪斜变形的圆柱直齿轮齿廓修形方法 |
CN108345272A (zh) * | 2018-01-19 | 2018-07-31 | 珠海格力智能装备有限公司 | 一种齿轮修形工艺确定方法、装置、终端及工业机器人 |
CN111299982A (zh) * | 2020-03-09 | 2020-06-19 | 洪新阳 | 一种农机齿轮修形加工工艺 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104653749B (zh) * | 2014-12-31 | 2017-05-24 | 中车戚墅堰机车车辆工艺研究所有限公司 | 大齿向修形量齿轮及其加工方法 |
JP2018111184A (ja) * | 2017-01-13 | 2018-07-19 | 株式会社ニッセイ | かさ型歯車の自由創成型加工機を想定した歯面修整方法 |
CN107908857B (zh) * | 2017-11-10 | 2021-03-02 | 重庆工商大学 | 齿向修形斜齿轮成形磨削时齿面原理性误差建模方法 |
CN109063326B (zh) * | 2018-07-31 | 2022-06-14 | 中国第一汽车股份有限公司 | 一种考虑微观修形和实际加工误差的齿轮精确建模方法 |
-
2020
- 2020-03-09 CN CN202010156372.9A patent/CN111299982B/zh active Active
- 2020-09-15 WO PCT/CN2020/115239 patent/WO2021179561A1/zh active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006242211A (ja) * | 2005-02-28 | 2006-09-14 | Mitsubishi Heavy Ind Ltd | 伝動歯車及びその製作方法 |
CN103302464A (zh) * | 2013-06-26 | 2013-09-18 | 天津市天瑞硬化工程有限公司 | 轿车变速器齿轮抗疲劳制造方法 |
CN103909390A (zh) * | 2014-03-12 | 2014-07-09 | 苏州锻压厂有限责任公司 | 一种风能发电机齿轮的制造方法 |
CN106695265A (zh) * | 2017-01-20 | 2017-05-24 | 常州市格里森前进齿轮有限公司 | 一种齿轮修形方法 |
CN107025367A (zh) * | 2017-06-05 | 2017-08-08 | 太原理工大学 | 基于轮齿热弹性变形和齿轮歪斜变形的圆柱直齿轮齿廓修形方法 |
CN108345272A (zh) * | 2018-01-19 | 2018-07-31 | 珠海格力智能装备有限公司 | 一种齿轮修形工艺确定方法、装置、终端及工业机器人 |
CN111299982A (zh) * | 2020-03-09 | 2020-06-19 | 洪新阳 | 一种农机齿轮修形加工工艺 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114048560A (zh) * | 2021-10-28 | 2022-02-15 | 长安大学 | 一种零承载传动误差幅值螺旋锥齿轮齿面主动Ease-off修形方法 |
CN114880800A (zh) * | 2022-05-16 | 2022-08-09 | 沈阳工业大学 | 一种用于改善齿面偏载的综合齿轮修形方法 |
CN114880800B (zh) * | 2022-05-16 | 2024-04-02 | 沈阳工业大学 | 一种用于改善齿面偏载的综合齿轮修形方法 |
Also Published As
Publication number | Publication date |
---|---|
CN111299982B (zh) | 2022-01-25 |
CN111299982A (zh) | 2020-06-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2021179561A1 (zh) | 一种农机齿轮修形加工工艺 | |
KR20150135139A (ko) | 기어들에서 인벌류트들의 위치 결정을 위한 방법 | |
US20100242283A1 (en) | Method for finishing a gear surface | |
CN107908857B (zh) | 齿向修形斜齿轮成形磨削时齿面原理性误差建模方法 | |
CN108730480A (zh) | 一种rv减速器的摆线轮及其齿廓逆向主动修形方法 | |
CN108343725B (zh) | 一种基于对数的摆线轮齿廓修形方法及摆线轮、rv减速器 | |
CN109376456B (zh) | 弧齿锥齿轮含安装误差的齿面载荷接触性能数值计算方法 | |
CN116382068B (zh) | 基于模糊pid的薄膜生产智能控制系统 | |
CN106980724A (zh) | 一种基于复杂齿面网格规划原则的齿面精确模型截面放样构建方法 | |
CN109977579B (zh) | 改善准双曲面齿轮啮合质量的机床加工参数优化方法 | |
CN111322373A (zh) | 一种基于羊角螺旋线齿条刀的齿轮副设计方法 | |
CN111079300A (zh) | 一种考虑齿向误差的直齿轮啮合刚度计算方法 | |
US3720989A (en) | Gear cutting methods | |
CN110039123B (zh) | 一种变压力角滚刀加工倒锥齿的方法 | |
Kissling et al. | Face gears: Geometry and strength | |
CN104565289A (zh) | 大齿向修形量齿轮的设计方法及大齿向修形量齿轮 | |
CN115143922B (zh) | 一种面向传动性能分析的齿轮齿面粗糙度测量与评定方法 | |
WO2020207237A1 (zh) | 面向成形齿轮的配对齿轮加工方法 | |
TW202031396A (zh) | 蝸輪加工方法 | |
CN109284544B (zh) | 螺旋锥齿轮形性协同制造参数驱动混合反调及控制方法 | |
CN115809527A (zh) | 基于切片法的斜齿轮时变啮合刚度及传递误差计算方法 | |
CN108856910B (zh) | 一种齿轮修缘的方法及装置 | |
CN110102829B (zh) | 一种锥齿轮加工工艺的对比方法 | |
CN113378312B (zh) | 一种斜齿轮时变啮合刚度计算方法 | |
CN108351630B (zh) | 用于在工件上产生或加工啮合齿的方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20923770 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20923770 Country of ref document: EP Kind code of ref document: A1 |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 06/03/2023) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20923770 Country of ref document: EP Kind code of ref document: A1 |