CN204565439U - Gear and the optimization Welding Structure in conjunction with tooth - Google Patents
Gear and the optimization Welding Structure in conjunction with tooth Download PDFInfo
- Publication number
- CN204565439U CN204565439U CN201520193653.6U CN201520193653U CN204565439U CN 204565439 U CN204565439 U CN 204565439U CN 201520193653 U CN201520193653 U CN 201520193653U CN 204565439 U CN204565439 U CN 204565439U
- Authority
- CN
- China
- Prior art keywords
- tooth
- conjunction
- gear
- hole
- welding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000003466 welding Methods 0.000 title claims abstract description 74
- 238000005457 optimization Methods 0.000 title claims 10
- 230000013011 mating Effects 0.000 claims description 10
- 230000017525 heat dissipation Effects 0.000 claims description 8
- 238000010894 electron beam technology Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 abstract description 33
- 238000010168 coupling process Methods 0.000 abstract description 33
- 238000005859 coupling reaction Methods 0.000 abstract description 33
- 230000005540 biological transmission Effects 0.000 abstract description 12
- 238000007689 inspection Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 11
- 238000004891 communication Methods 0.000 description 7
- 238000003825 pressing Methods 0.000 description 7
- 238000005336 cracking Methods 0.000 description 6
- 206010016256 fatigue Diseases 0.000 description 6
- 230000035515 penetration Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007705 chemical test Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Welding Or Cutting Using Electron Beams (AREA)
- Gears, Cams (AREA)
Abstract
一种变速器制造领域的齿轮与结合齿的优化焊接结构，其特征在于，包括：环形档位齿轮以及环形结合齿，其中：档位齿轮的接合部与结合齿的压入部为过盈配合，且接合部的下表面和压入部的上表面构成连通的第一空穴和第二空穴。本实用新型既保证了零件的装配精度要求，又降低了加工成本，最终实现焊接后焊接处受力均匀、焊接稳定性高的效果，并且形成的焊缝位于零件的端面外侧，方便焊接作业以及焊接部的质量检查。
An optimized welding structure of gears and coupling teeth in the field of transmission manufacturing, characterized in that it includes: an annular shift gear and annular coupling teeth, wherein: the engagement portion of the shift gear and the press-fit portion of the coupling teeth are interference fit, and The lower surface of the joining portion and the upper surface of the press-fitting portion form a first cavity and a second cavity that communicate with each other. The utility model not only ensures the assembly accuracy requirements of the parts, but also reduces the processing cost, and finally realizes the effects of uniform stress on the welding place after welding and high welding stability, and the formed weld seam is located outside the end face of the parts, which is convenient for welding operations and Quality inspection of welded parts.
Description
技术领域technical field
本实用新型涉及的是一种变速器制造领域的技术，具体是一种齿轮与结合齿的优化焊接结构。The utility model relates to a technique in the field of transmission manufacturing, in particular to an optimized welding structure of gears and coupling teeth.
背景技术Background technique
作为汽车变速器中的核心零部件，换档齿轮与结合齿的焊接结构直接影响变速器的换档性能。目前已公开的涉及换档齿轮与结合齿的焊接结构，存在很多缺陷，如焊接点受力不均匀；焊接形成的高温空气熔入焊缝中形成气泡，影响焊接强度；焊接结构不合理造成焊接作业困难，焊接部质量检查困难；焊接装配精度不高等。因此，设计一种优良的齿轮与结合齿的焊接结构，规避所述的缺陷能够大大提高汽车变速器的工作性能。As the core component of the automobile transmission, the welding structure of the shift gear and the coupling teeth directly affects the shift performance of the transmission. The currently disclosed welding structure involving shift gears and coupling teeth has many defects, such as uneven force on the welding point; high-temperature air formed by welding melts into the weld seam to form bubbles, which affects the welding strength; unreasonable welding structure causes welding The operation is difficult, the quality inspection of the welding part is difficult; the welding assembly accuracy is not high, etc. Therefore, designing a good welding structure of gears and coupling teeth can greatly improve the working performance of the automobile transmission by avoiding the above-mentioned defects.
邵亮在“变速器从动齿轮疲劳开裂分析”(2012年第6期汽车工艺与材料)中提出：为确定某轻型变速器从动齿轮早期疲劳开裂的原因，对开裂齿轮进行了断口宏观分析、焊缝熔深的测量、金相组织和硬度检验。在理化试验的基础上，结合微观断口形貌和断裂机制对从动齿轮疲劳开裂的原因进行了分析。结果表明，疲劳开裂起源于电子束焊接焊缝的边缘，为多源性扭转正应力疲劳开裂，后续转化成为齿轮轮毂的疲劳开裂；导致疲劳开裂的原因是焊缝的熔深不足，而焊缝熔深不足则与电子束倾斜偏离接合缝有关。Shao Liang proposed in "Fatigue Cracking Analysis of Transmission Driven Gears" (2012 No. 6 Automobile Technology and Materials): In order to determine the cause of early fatigue cracking of a light-duty transmission driven gear, the fracture macroscopic analysis of the cracked gear, welding Measurement of seam penetration, metallographic structure and hardness inspection. On the basis of physical and chemical tests, the reasons for the fatigue cracking of the driven gear were analyzed in combination with the microscopic fracture morphology and fracture mechanism. The results show that the fatigue cracking originated from the edge of the electron beam welding seam, which is multi-source torsional normal stress fatigue cracking, and subsequently transformed into fatigue cracking of the gear hub; Insufficient penetration is related to the tilt of the electron beam away from the joint.
唐忠荣，张翊在“汽车同步器齿环相关设计参数分析”中提出变速器换挡力的大小是评价整车操控性的重要指标之一，汽车同步器齿环的设计合理与否，对变速器换挡力有重要影响。分析同步器齿环工作过程中相关参数对换挡力的不同影响，对在设计中寻求较合理的同步齿环相关参数进行了探讨。Tang Zhongrong and Zhang Yi pointed out in the "Analysis of Related Design Parameters of Automobile Synchronizer Rings" that the size of the transmission shift force is one of the important indicators for evaluating the handling of the vehicle. The blocking force has an important influence. The different influences of relevant parameters on the shifting force in the working process of the synchronizer ring are analyzed, and the search for more reasonable parameters of the synchronizer ring in the design is discussed.
焊接工艺中的主要问题是，焊接过程中产生的大量热量，使得零件空腔里的空气大量膨胀，空气得不到排除的话，会导致零件空腔里的压强增大，既影响焊接件的接合紧密性，又会形成焊缝气泡，造成焊缝强度变弱。另外，在焊接工艺中，焊缝的深度大于或等于配合面深度的二分之一才能保证焊缝的强度。但为了提高汽车变速器的换档性能，需要提高档位齿轮和结合齿配合面的精度等级要求，以增加焊接处端面的加工精度，但这样也会增加零件加工难度，提高制造成本。The main problem in the welding process is that a large amount of heat generated during the welding process makes the air in the cavity of the part expand a lot. If the air is not removed, the pressure in the cavity of the part will increase, which will affect the joint of the weldment. Tightness, will form weld seam bubble again, cause weld seam strength to weaken. In addition, in the welding process, the depth of the weld is greater than or equal to half of the depth of the mating surface to ensure the strength of the weld. However, in order to improve the shifting performance of the automobile transmission, it is necessary to increase the accuracy level requirements of the gear and the mating surface of the coupling gear to increase the machining accuracy of the end face of the welding point, but this will also increase the difficulty of processing the parts and increase the manufacturing cost.
经过对现有技术的检索发现，中国专利文献号CN204186835U公开(公告)日2015.03.04，公开了一种分体式汽车变速器同步器，包括档位齿轮、结合齿和摩擦锥环为分体式结构，档位齿轮的后侧轴向延伸部上设有档位齿轮外花键，结合齿的外圆周上设有结合齿外花键，结合齿的内圆周上设有结合齿内花键，结合齿上设有沿圆周均匀阵列的若干个插孔；摩擦锥环上设有与插孔匹配对应的若干个爪，摩擦锥环的内壁上和同步环的外壁上均设有散热盲槽，散热盲槽内设有散热硅胶条。但该技术中的档位齿轮和结合齿通过内外花键结合在一起，可能产生周向和轴向的窜动，没有焊接的结合强度高；而且通过花键连接，对装配要求很高，容易造成较大的累积误差；零件工作时间久了，甚至会出现连接松动的现象，从而导致零件失效。After searching the prior art, it was found that Chinese Patent Document No. CN204186835U was published (announced) on 2015.03.04, disclosing a split-type automobile transmission synchronizer, including gear gears, coupling teeth and friction cone rings as split structures, The rear axial extension of the gear gear is provided with gear gear external splines, the outer circumference of the coupling teeth is provided with coupling teeth external splines, the inner circumference of the coupling teeth is provided with coupling teeth internal splines, and the coupling teeth There are several sockets uniformly arrayed along the circumference; the friction cone ring is provided with several claws corresponding to the sockets, and the inner wall of the friction cone ring and the outer wall of the synchronous ring are provided with heat dissipation blind grooves. There is a cooling silicone strip in the groove. However, the gear gear and the coupling teeth in this technology are combined through internal and external splines, which may cause circumferential and axial movement, and the bonding strength is not as high as that of welding; moreover, the spline connection requires high assembly requirements and is easy. It causes a large cumulative error; the parts work for a long time, and even the connection may become loose, which will lead to the failure of the parts.
中国专利文献号CN1785576，公开(公告)日2006.06.14，公开了一种焊接技术领域的齿轮激光焊接加工方法，通过对焊接的基本参数的调整，以及增加预焊、后焊步骤，来确保焊接合金结构钢的熔深及焊后扭矩达到要求，具体步骤为：机加工过程控制、焊前清洗、焊前清洁、预焊、深熔焊、后焊、保护气体流量控制；所述的焊接的基本参数包括离焦量、深熔焊功率、深熔焊线速度。但该技术中焊接产生的大量高温空气在焊接面无法排出，熔入焊缝中形成气泡，影响焊接质量。Chinese patent document number CN1785576, published (announcement) date 2006.06.14, discloses a gear laser welding processing method in the field of welding technology, by adjusting the basic parameters of welding, and adding pre-welding and post-welding steps to ensure welding The penetration depth and post-weld torque of the alloy structural steel meet the requirements. The specific steps are: machining process control, pre-weld cleaning, pre-weld cleaning, pre-welding, deep penetration welding, post-welding, and shielding gas flow control; Basic parameters include defocus amount, deep penetration welding power, and deep penetration welding line speed. However, in this technology, a large amount of high-temperature air generated by welding cannot be discharged on the welding surface, and it melts into the weld seam to form air bubbles, which affects the welding quality.
实用新型内容Utility model content
本实用新型针对现有技术存在的所述的不足，提出一种齿轮与结合齿的优化焊接结构，通过巧妙设计，既保证了零件的装配精度要求，又降低了加工成本，最终实现焊接后焊接处受力均匀、焊接稳定性高的效果，并且形成的焊缝位于零件的端面外侧，方便焊接作业以及焊接部的质量检查。Aiming at the above-mentioned deficiencies in the prior art, the utility model proposes an optimized welding structure of gears and coupling teeth. Through ingenious design, it not only ensures the assembly accuracy requirements of the parts, but also reduces the processing cost, and finally realizes welding after welding. The effect of uniform stress and high welding stability, and the formed weld is located outside the end face of the part, which is convenient for welding operation and quality inspection of the welded part.
本实用新型是通过以下技术方案实现的：The utility model is achieved through the following technical solutions:
本实用新型包括：环形档位齿轮以及环形结合齿，其中：档位齿轮的接合部与结合齿的压入部为过盈配合，且接合部的下表面和压入部的上表面构成连通的第一空穴和第二空穴。The utility model comprises: an annular shift gear and an annular combination tooth, wherein: the engagement part of the shift gear and the press-fit part of the join tooth are an interference fit, and the lower surface of the joint part and the upper surface of the press-fit part form a connected first hole and second hole.
所述的第一空穴是指：档位齿轮的接合部上设有第一环形槽，对应结合齿的压入部上设有第二环形槽，第一环形槽的下表面与第二环形槽的上表面构成所述第一空穴。The first cavity refers to: a first annular groove is provided on the joint part of the gear gear, a second annular groove is provided on the pressing part corresponding to the coupling teeth, and the lower surface of the first annular groove is connected with the second annular groove. The upper surface of constitutes the first cavity.
所述的第二空穴是指：结合齿的压入部上设有第三环形槽，第三环形槽的上表面与接合部的下表面构成所述第二空穴。The second cavity means that a third annular groove is provided on the pressing part of the coupling tooth, and the upper surface of the third annular groove and the lower surface of the joint part constitute the second cavity.
所述的第一空穴和第二空穴之间设有连通通道，连通通道位于第一空穴的轴向的右侧，当档位齿轮与结合齿配合以后，连通通道连通第一空穴和第二空穴。There is a communication channel between the first cavity and the second cavity. The communication channel is located on the right side of the first cavity in the axial direction. and the second hole.
所述的第二空穴设有散热通道实现排气，该散热通道位于配合面的待焊接位置相对侧。The second cavity is provided with a heat dissipation channel to realize exhaust, and the heat dissipation channel is located on the opposite side of the mating surface to the position to be welded.
所述的过盈配合是指：所述的接合部和压入部的端面平齐并形成一个环形的交接处，当进行激光焊或电子束焊将该交接处焊接一周后，即可形成环形焊缝。The interference fit refers to: the end faces of the joint part and the press-in part are flush and form a ring-shaped junction, and after laser welding or electron beam welding is performed to weld the junction for a week, a ring-shaped weld can be formed. seam.
所述的散热通道具体位于结合齿的齿轮部并与第二空穴相连，从而将受热膨胀的空气从第一空穴到第二空穴并最终排出。The heat dissipating channel is specifically located at the gear part combining the teeth and is connected with the second cavity, so that the heated and expanded air is passed from the first cavity to the second cavity and finally exhausted.
所述的档位齿轮的接合部与结合齿的压入部采用阶梯状结构，具体为：档位齿轮的接合部中第一空穴的轴向的左侧部分孔径d1L比其右侧部分孔径d1R小0.01mm；结合齿的压入部中第一空穴的轴向的左侧部分轴径d2L比其右侧部分轴径d2R小0.01mm。The engaging portion of the gear gear and the pressing-in portion of the coupling teeth adopt a stepped structure, specifically: the axial left part aperture d1L of the first cavity in the engaging portion of the gear gear is larger than the aperture diameter d1L of the right portion d 1R is 0.01mm smaller; the shaft diameter d 2L of the left part of the axial left part of the first cavity in the press-fit part of the combined tooth is 0.01 mm smaller than the shaft diameter d 2R of the right part.
技术效果technical effect
与现有技术相比，本实用新型在高温焊接过程中，第一空穴中形成的高温空气通过连通通道、第二空穴和散热通道最终排除，有效防止气体熔入焊缝中形成气泡，提高了焊缝强度；焊接点受力均匀，避免了焊接深度过长而导致的焊缝深度不均匀；焊接装配精度高，保证了零件的加工精度要求，尤其是焊接件的端面加工精度；压配的接合部和压入部采用阶梯状尺寸设计，先压的轴孔配合采用稍大的尺寸，后压的轴孔配合采用稍小的尺寸，保证先压入的部分不会被磨损，以利于压装平稳；焊接结构合理，焊接作业及焊接部质量检查简单易行等。Compared with the prior art, in the high-temperature welding process of the utility model, the high-temperature air formed in the first cavity is finally discharged through the communication channel, the second cavity and the heat dissipation channel, effectively preventing the gas from melting into the weld seam to form bubbles, The strength of the weld seam is improved; the force of the welding point is uniform, which avoids the uneven depth of the weld seam caused by the excessively long welding depth; the welding assembly accuracy is high, which ensures the processing accuracy requirements of the parts, especially the end surface processing accuracy of the welded parts; The mating joint and press-in part adopt a stepped size design, the shaft hole that is pressed first adopts a slightly larger size, and the shaft hole that is pressed later adopts a slightly smaller size, so as to ensure that the part that is pressed in first will not be worn, so as to facilitate The pressing is stable; the welding structure is reasonable, and the welding operation and quality inspection of the welding part are simple and easy.
附图说明Description of drawings
图1是本实用新型的结构立体示意图；Fig. 1 is a schematic perspective view of the structure of the utility model;
图2是本实用新型的结构主视图；Fig. 2 is a structural front view of the utility model;
图3是本实用新型的结构剖面图；Fig. 3 is a structural sectional view of the utility model;
图4是本实用新型的局部放大图；Fig. 4 is a partial enlarged view of the utility model;
图5是本实用新型的焊接点放大图；Fig. 5 is an enlarged view of the welding spot of the present utility model;
图6是档位齿轮的结构剖面图；Fig. 6 is a structural sectional view of the gear;
图7是档位齿轮的剖面放大图；Figure 7 is an enlarged cross-sectional view of the gear;
图8是结合齿的结构示意图；Fig. 8 is a structural schematic diagram of a coupling tooth;
图9是结合齿的剖面放大图；Fig. 9 is an enlarged cross-sectional view of a coupling tooth;
图10是图9局部放大示意图；Fig. 10 is a partially enlarged schematic diagram of Fig. 9;
图中：档位齿轮1、结合齿2、环形焊缝3、第一环形槽4、第二环形槽5、第三环形槽6、连通通道7、散热通道8。In the figure: a gear gear 1, a coupling tooth 2, an annular weld 3, a first annular groove 4, a second annular groove 5, a third annular groove 6, a communicating channel 7, and a cooling channel 8.
具体实施方式Detailed ways
下面对本实用新型的实施例作详细说明，本实施例在以本实用新型技术方案为前提下进行实施，给出了详细的实施方式和具体的操作过程，但本实用新型的保护范围不限于下述的实施例。The following is a detailed description of the embodiments of the present utility model. This embodiment is implemented on the premise of the technical solution of the present utility model, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present utility model is not limited to the following the described embodiment.
实施例1Example 1
如图1～3所示，本实施例涉及一种齿轮与结合齿的焊接结构，包括：具有齿轮部和接合部的环形档位齿轮1以及具有齿轮部和压入部的环形结合齿2，其中：档位齿轮1的接合部b与结合齿2的压入部a为过盈配合。As shown in Figures 1 to 3, this embodiment relates to a welding structure of gears and coupling teeth, including: an annular shift gear 1 with a gear part and an engaging part, and an annular coupling tooth 2 with a gear part and a pressing part, wherein : The engagement portion b of the shift gear 1 and the press-fit portion a of the coupling tooth 2 are interference fit.
如图4所示，所述的档位齿轮1的接合部b上设有第一环形槽4，结合齿2的压入部a上设有第二环形槽5，当所述过盈配合后使得第一环形槽4与第二环形槽5构成第一空穴。As shown in Figure 4, a first annular groove 4 is provided on the engaging part b of the shift gear 1, and a second annular groove 5 is provided on the pressing part a of the coupling tooth 2, so that after the interference fit The first annular groove 4 and the second annular groove 5 form a first cavity.
所述的过盈配合是指：环形档位齿轮1和环形结合齿2的接合部和压入部的端面平齐并形成一个环形的交接处，当进行激光焊或电子束焊将该交接处焊接一周后，即可形成环形焊缝3。The interference fit refers to: the joint part of the ring gear 1 and the ring coupling tooth 2 and the end face of the press-fit part are flush and form a ring-shaped junction, when laser welding or electron beam welding is performed to weld the junction After one week, the annular weld 3 can be formed.
如图5所示，当进行高温焊接时，环形焊缝3形成于档位齿轮1的接合部与结合齿2的压入部端面上的交接处，即第一空穴的轴向的左侧。As shown in FIG. 5 , when high-temperature welding is performed, the annular weld 3 is formed at the intersection of the joint portion of the shift gear 1 and the end surface of the press-fit portion of the coupling tooth 2 , that is, the axial left side of the first cavity.
如图5所示，所述的档位齿轮1的接合部b上设有连通通道7，连通通道7位于第一空穴的轴向的右侧，当档位齿轮1与结合齿2配合以后，连通通道7连通第一空穴和第二空穴的通道。As shown in Figure 5, the joint part b of the gear gear 1 is provided with a communication channel 7, and the communication channel 7 is located on the right side of the axial direction of the first cavity. , the communication channel 7 communicates the channels of the first cavity and the second cavity.
所述的连通通道7可以是沿档位齿轮1轴向的若干个轴向槽，或可以是如图6和图7中所示的螺旋槽，该螺旋槽的两端分别与第一空穴和第二空穴相连通。The communication channel 7 can be several axial grooves along the axial direction of the gear gear 1, or can be a spiral groove as shown in Figure 6 and Figure 7, the two ends of the spiral groove are respectively connected to the first cavity communicate with the second hole.
如图5、图9和图10所示，所述的结合齿2的压入部a上设有第三环形槽6，位于第一空穴的轴向的右侧，第三环形槽6与档位齿轮1的接合部形成第二空穴；As shown in Fig. 5, Fig. 9 and Fig. 10, a third annular groove 6 is provided on the pressing part a of the coupling tooth 2, which is located on the right side of the axial direction of the first cavity. The engagement portion of bit gear 1 forms a second cavity;
如图5和图10所示，所述的结合齿2的齿轮部开有连通第二空穴的散热通道8，从而将受热膨胀的空气从第一空穴到第二空穴并最终排出。As shown in FIG. 5 and FIG. 10 , the gear portion of the combination tooth 2 is opened with a heat dissipation channel 8 communicating with the second cavity, so that the heated and expanded air is discharged from the first cavity to the second cavity and finally discharged.
所述的档位齿轮1的接合部b与结合齿2的压入部a采用阶梯状尺寸设计，使得压配过程中先压入的部分不会被磨损，具体为：The joint part b of the gear gear 1 and the press-fit part a of the coupling tooth 2 are designed with stepped dimensions, so that the part pressed in first will not be worn during the press-fitting process, specifically:
所述的档位齿轮1的接合部b中第一空穴的轴向的左侧部分孔径d1L比其右侧部分孔径d1R小0.01mm。The diameter d 1L of the axial left portion of the first cavity in the joint portion b of the shift gear 1 is smaller than the diameter d 1R of the right portion by 0.01mm.
所述的结合齿2的压入部a中第一空穴的轴向的左侧部分轴径d2L比其右侧部分轴径d2R小0.01mm。The shaft diameter d 2L of the left part of the first cavity in the press-fit part a of the coupling tooth 2 is 0.01 mm smaller than the shaft diameter d 2R of the right part thereof.
汽车变速器工作时，换档频繁，本实用新型为了提高汽车变速器的换档性能，在档位齿轮1和结合齿2的配合面上开环形槽，形成的第一空穴能降低配合面的磨削面积，从而既保证了零件的装配精度要求，又降低了加工成本。When the automobile transmission is working, the shifting gear is frequent. In order to improve the shifting performance of the automobile transmission, the utility model opens an annular groove on the mating surface of the gear gear 1 and the coupling tooth 2, and the first cavity formed can reduce the wear of the mating surface. The cutting area not only ensures the assembly accuracy requirements of the parts, but also reduces the processing cost.
同时，压配的档位齿轮1的接合部和结合齿2的压入部采用阶梯状尺寸设计，先压入的轴孔配合采用稍大的尺寸，后压入的轴孔配合采用稍小的尺寸，保证先压入的部分不会被磨损，以利于压装平稳，从而提高焊接质量。At the same time, the joint part of the press-fit gear 1 and the press-in part of the coupling gear 2 adopt a stepped size design, the shaft hole that is pressed in first adopts a slightly larger size, and the shaft hole that is pressed in later adopts a slightly smaller size , to ensure that the part pressed in first will not be worn, so as to facilitate the smooth pressing and improve the welding quality.
另外，焊接工艺中，焊缝的深度大于或等于配合面深度的二分之一才能保证焊缝的强度。在本实用新型中，第一空穴的两侧的配合面都采用过盈配合，在第一空穴的左侧进行焊接，右侧用于定位，配合面的总长变短了，使得焊接深度变短，降低了焊接工作的难度，同时保证了焊接处的受力均匀。而这种焊接方法，形成的焊缝位于零件的端面外侧，方便焊接作业以及焊接部的质量检查。In addition, in the welding process, the depth of the weld is greater than or equal to half of the depth of the mating surface to ensure the strength of the weld. In the utility model, the mating surfaces on both sides of the first cavity adopt interference fit, welding is performed on the left side of the first cavity, and the right side is used for positioning, the total length of the mating surfaces becomes shorter, so that the welding depth The shortening reduces the difficulty of welding work, and at the same time ensures that the force on the weld is even. In this welding method, the weld seam formed is located outside the end face of the part, which facilitates the welding operation and the quality inspection of the welded part.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520193653.6U CN204565439U (en) | 2015-04-01 | 2015-04-01 | Gear and the optimization Welding Structure in conjunction with tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520193653.6U CN204565439U (en) | 2015-04-01 | 2015-04-01 | Gear and the optimization Welding Structure in conjunction with tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204565439U true CN204565439U (en) | 2015-08-19 |
Family
ID=53858130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520193653.6U Expired - Fee Related CN204565439U (en) | 2015-04-01 | 2015-04-01 | Gear and the optimization Welding Structure in conjunction with tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204565439U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624674A (en) * | 2017-03-14 | 2017-05-10 | 芜湖万里扬变速器有限公司 | Machining process suitable for gear assembly of automobile transmission |
-
2015
- 2015-04-01 CN CN201520193653.6U patent/CN204565439U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624674A (en) * | 2017-03-14 | 2017-05-10 | 芜湖万里扬变速器有限公司 | Machining process suitable for gear assembly of automobile transmission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101344562B1 (en) | Welded structure and welding method | |
| JP5333459B2 (en) | Welded structure and welding method | |
| JP6217023B2 (en) | Differential device and manufacturing method thereof | |
| EP1712324A1 (en) | Weld prep joint assembly with interference fit for electron beam or laser welding ; Method of welding such assembly | |
| KR101522651B1 (en) | hub overdriver clutch and manufacturing method thereof | |
| JP2011167746A (en) | Beam-welded member and differential gear equipped with the same | |
| JP2015124874A5 (en) | ||
| WO2011030595A1 (en) | Method for manufacturing piston rod | |
| CN204565439U (en) | Gear and the optimization Welding Structure in conjunction with tooth | |
| JP5136184B2 (en) | Method for joining metal members | |
| KR101668192B1 (en) | One-way keulleochiyong, inner race manufacture method of the assei | |
| CN104722940B (en) | The optimization welding method and structure of gear and conjunction gear | |
| JP5701180B2 (en) | Synchronous clutch gear for double cone sync | |
| CN214742851U (en) | Welded gear shaft structure | |
| CN204267122U (en) | For the extremity piece of camshaft | |
| CN204921916U (en) | Transmission input shaft mechanism | |
| JP2015142925A (en) | Binding of steering system components | |
| JP2000240762A (en) | Idle gear for transmission and method of manufacturing the same | |
| CN116117444A (en) | Butt joint method for high-strength precision welded cold drawn steel tube | |
| CN210566125U (en) | Welding structure for intermediate shaft of transmission | |
| CN215393610U (en) | Gear shaft interference connecting mechanism | |
| CN219598597U (en) | Hollow shaft for machining internal spline by laser/argon arc welding and broaching | |
| CN202545541U (en) | Inner spline shaft | |
| JP2014149146A (en) | Methods of reinforcing combustor aperture and related combustor | |
| CN117086579B (en) | A processing method for an electron beam welded piston with an insert ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 |