WO2015154220A1 - Method and device for stacking and fixing stator core used in traction motor of narrow gauge locomotive - Google Patents

Method and device for stacking and fixing stator core used in traction motor of narrow gauge locomotive Download PDF

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WO2015154220A1
WO2015154220A1 PCT/CN2014/074895 CN2014074895W WO2015154220A1 WO 2015154220 A1 WO2015154220 A1 WO 2015154220A1 CN 2014074895 W CN2014074895 W CN 2014074895W WO 2015154220 A1 WO2015154220 A1 WO 2015154220A1
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WIPO (PCT)
Prior art keywords
lamination
stator core
welding
ring
stator
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PCT/CN2014/074895
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French (fr)
Chinese (zh)
Inventor
杨振中
唐子谋
丁禄振
王冬梅
程利
余超
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南车株洲电机有限公司
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Priority to PCT/CN2014/074895 priority Critical patent/WO2015154220A1/en
Publication of WO2015154220A1 publication Critical patent/WO2015154220A1/en

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/024Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots

Abstract

Disclosed are a method and a device for stacking and fixing a stator core used in a traction motor of a narrow gauge locomotive, wherein stopper ports, which match with the outer diameter of the stator core lamination, are provided on the sides of clamp rings at two ends of the motor stator near the core, the nominal dimension of the stopper port diameter is the same as the outer diameter of a punching sheet, the two ends of the stator core lamination are clamped within the stopper ports of the clamp rings at two ends of the stator, a transition fit being formed therebetween, and the fitting relationship being ensured by a tolerance zone of size; the stator core of the motor is mainly divided into two portions, i.e. a portion intruded into the clamp rings and a portion exposed to the outside; the exterior of the punching sheet of the portion intruded into the clamp ring is provided with notches which are distributed evenly, and the number of punching sheets which are intruded into the clamp ring is adapted to the depth of the stopper port of the clamp ring; the number of punching sheets exposed to the outside is determined according to the total length of the core; the portion intruded into the clamp rings at the two ends are formed into a certain height of laminations by means of stacking in advance, and the punching sheets intruded into the clamp rings are partially stacked and fixed as a whole by means of welding at the notches, thereby forming a welded lamination.

Description

窄轨机车牵引电机用定子铁芯叠压固定方法及装置 技术领域 本发明涉及一种机车牵引电机的制作方法及装置,特别是一种窄轨机车牵引电机用定子 铁芯叠压固定方法及装置, 主要用于窄轨机车牵弓 I电机制作。 背景技术  TECHNICAL FIELD The present invention relates to a method and a device for manufacturing a traction motor for a locomotive, and particularly to a method and a device for fixing a stator core of a traction motor for a narrow-gauge locomotive It is mainly used for the production of narrow-gauge locomotives. Background technique
铁路有宽轨与窄轨之分, 在我国窄轨铁路主要有国有铁路、 地方铁路、 森林铁路、 工矿 铁路、游览铁路。在世界上, 窄轨铁路主要分布在亚、 非、拉等发展中国家。在发达国家中, 澳大利亚和南非均拥有超过 2万公里的窄轨铁路, 轨距以 1067mm为主。  There are wide rails and narrow rails in railways. In China, narrow rail railways mainly include state-owned railways, local railways, forest railways, industrial and mining railways, and railways. In the world, narrow-gauge railways are mainly distributed in developing countries such as Asia, Africa and Latin America. In developed countries, Australia and South Africa have more than 20,000 km of narrow-gauge railways with a track gauge of 1067 mm.
在这些国家煤炭、 矿石资源是其资源构成的基础和主导。 受矿山巷道空间环境的限制, 运输矿石、 物料、 人员的电力机车一般都采用窄轨机车。 窄轨铺设成本少, 曲率半径小, 车 厢重量较轻, 可用于较大的路线坡度。 因此, 窄轨机车成为煤矿生产运输中最重要的机电设 备之一。  Coal and ore resources in these countries are the basis and dominance of their resources. Due to the limitation of the space environment of the mine roadway, the electric locomotives that transport ore, materials and personnel generally adopt narrow-gauge locomotives. Narrow rails are less costly to construct, have a smaller radius of curvature, and are lighter in weight, allowing for larger route grades. Therefore, narrow-gauge locomotives have become one of the most important electromechanical devices in coal mine production and transportation.
但是由于窄轨的尺寸要小一些,窄轨机车的核心动力牵引电机在轴向空间上也受到严重 的限制, 导致定子机座的结构设计有较大的难度。机车牵引电机定子机座一般采用无机壳筋 板焊接结构, 主要由铁芯、 压圈、 筋板(拉板)和接线盒等零部件组成。 铁芯由冷轧硅钢片 叠压而成, 压圈和筋板 (拉板)分别与铁芯的两端面和外圆配合, 通过筋板(拉板)与两端 的压圈的焊接, 将叠压后铁芯夹紧固定并形成一个稳固贴合的整体。窄轨机车牵引电机定子 机座也是采用这种基本结构, 但是由于轴向空间的限制, 铁芯往往侵占了两端压圈的部分尺 寸, 使得压圈甚至整个定子机座的设计难度更加突出。 因此, 如何在不影响两端压圈强度和 刚度的前提下实现铁芯可靠的夹紧固定及定子机座稳固的效果, 保证定子机座整体的可靠 性, 是目前窄轨机车牵引电机定子机座结构设计亟需解决的问题。 通过国内专利文献检索未发现直接与本发明相同的技术, 只是有一些相关的文献报道, 与本发明有一定关系的主要有以下一些:  However, due to the smaller size of the narrow rail, the core power traction motor of the narrow gauge locomotive is also severely limited in the axial space, which makes the structural design of the stator base more difficult. The stator frame of the traction motor of the locomotive generally adopts the inorganic shell rib welded structure, which is mainly composed of iron core, pressing ring, rib plate (pull plate) and junction box. The iron core is formed by laminating cold-rolled silicon steel sheets, and the pressing ring and the ribs (pull plates) are respectively matched with the end faces and the outer circle of the iron core, and are welded by the ribs (pull plates) and the pressing rings at both ends. After pressing, the core is clamped and fixed to form a solid fit. The stator frame of the narrow-gauge locomotive traction motor also adopts this basic structure, but due to the limitation of the axial space, the iron core often encroaches on the partial size of the pressure ring at both ends, making the design of the pressing ring and even the entire stator frame more difficult. Therefore, how to achieve the reliable clamping and fixing of the iron core and the stability of the stator frame without affecting the strength and rigidity of the pressure ring at both ends, and ensure the reliability of the stator frame as a whole, is the stator machine of the narrow-rail locomotive traction motor. The problem of the design of the seat structure is urgent. The domestic patent document search has not found the same technology directly related to the present invention, but there are some related literature reports, and the following are mainly related to the present invention:
1、 专利号为 CN201320272074. 1, 名称为 "一种窄轨矿用变频牵引电机" 的发明专利, 该专利公开了一种窄轨矿用变频牵引电机, 在变频牵引电机的外壳表面有深沟螺纹。本实用 新型具有如下的技术效果, 采用在变频牵引电机的外壳表面加工深沟螺纹, 有效地增加了外 壳表面积, 在不增加机座外径的基础上, 改变螺纹间距及螺纹深度的比例, 就可以精确改变 机座表面积,满足电机的散热效果。解决了电机散热技术难题。一种窄轨矿用变频牵引电机, 在变频牵引电机的外壳表面有深沟螺纹。本实用新型具有如下的技术效果, 采用在变频牵引 电机的外壳表面加工深沟螺纹, 有效地增加了外壳表面积, 在不增加机座外径的基础上, 改 变螺纹间距及螺纹深度的比例, 就可以精确改变机座表面积, 满足电机的散热效果。 解决了 电机散热技术难题。 1. Patent No. CN201320272074. 1, the invention patent entitled "A narrow-gauge mine frequency conversion traction motor", which discloses a narrow-gauge mine frequency conversion traction motor with deep grooves on the outer surface of the variable-frequency traction motor Thread. The utility model has the following technical effects, and the deep groove thread is processed on the outer surface of the frequency conversion traction motor, thereby effectively increasing the surface area of the outer casing, and changing the ratio of the thread pitch and the thread depth without increasing the outer diameter of the casing, Can be changed precisely The surface area of the base meets the heat dissipation effect of the motor. Solved the technical problem of motor cooling. A narrow-track mining frequency traction traction motor has deep groove threads on the surface of the casing of the variable frequency traction motor. The utility model has the following technical effects, and the deep groove thread is processed on the outer surface of the frequency conversion traction motor, thereby effectively increasing the surface area of the outer casing, and changing the ratio of the thread pitch and the thread depth without increasing the outer diameter of the casing, The surface area of the base can be precisely changed to meet the heat dissipation effect of the motor. Solved the technical problem of motor cooling.
2、 专利号为 CN201210068458. 1, 名称为 "一种叠片铁芯及其制造方法" 的发明专利, 该专利公开了一种用于马达, 如电动马达的叠片铁芯, 该叠片铁芯包括以至少一层叠压成的 单元叠片, 并且所述单元叠片由柔软磁性复合材料形成, 其中, 形成所述柔软磁性复合材料 的每个粉末颗粒都被绝缘物包覆。本发明的优选实施方式能够通过使用所述柔软磁性复合材 料的叠压方法制造所述铁芯, 改进所述柔软磁性复合材料的所述铁芯的机械强度, 并通过在 形成所述柔软磁性复合材料的粉末颗粒上施行绝缘物涂覆使铁芯损耗减少。  2. Patent No. CN201210068458. 1, the invention patent entitled "A laminated core and a manufacturing method thereof", which discloses a laminated core for a motor, such as an electric motor, the laminated iron The core includes unit laminations laminated in at least one laminate, and the unit laminations are formed of a soft magnetic composite material, wherein each of the powder particles forming the soft magnetic composite material is covered with an insulator. A preferred embodiment of the present invention is capable of manufacturing the iron core by a lamination method using the soft magnetic composite material, improving mechanical strength of the iron core of the soft magnetic composite material, and by forming the soft magnetic composite The application of an insulator on the powder particles of the material reduces the core loss.
3、专利号为 CN201210227506. 7, 名称为 "电动机的定子铁芯的制造方法"的发明专利, 该专利公开了一种适合于自动化的定子铁芯的制造方法, 具备如下的工序: 冲齿并进行叠压 而准备多组叠压在一起的齿 (S1 ) ; 将用搭边料连接起来的多个齿配置成环状而准备环状齿 3. Patent No. CN201210227506. 7, the invention patent entitled "Manufacturing Method of Stator Core of Electric Motor", which discloses a method for manufacturing a stator core suitable for automation, which has the following steps: Performing lamination to prepare a plurality of sets of teeth (S1) which are laminated together; and arranging a plurality of teeth connected by the edging material into a ring shape to prepare a ring tooth
( S2 );连接多组被叠压在一起的齿和环状齿,并用搭边料连接多组被叠压在一起的齿(S3 ); 对用搭边料连接起来的多组叠压在一起的齿分别进行绕线 (S4) ; 将搭边料的中间位置向中 心方向拉伸, 使多组叠压在一起的齿向中心方向靠近 (S5 ); 冲压去除搭边料 (S6)。 (S2); connecting a plurality of sets of teeth and ring teeth that are stacked together, and connecting a plurality of sets of teeth (S3) that are stacked together with a lap joint; and stacking the plurality of sets connected by the lap joint The teeth are respectively wound (S4); the intermediate position of the lap material is stretched toward the center, so that the plurality of sets of the pressed teeth are closer to the center direction (S5); the burr is removed by punching (S6).
4、 专利号为 CN201210045801. 0, 名称为 "一种叠片铁芯及其制造方法" 的发明专利, 该专利公开了一种大、 中型电机定子铁芯, 特别涉及在卧式压装机上叠压的一种大、 中型电 机定子铁芯叠压工装。 所述工装在卧式压装机上叠压, 所述叠压工装包括工装本体、 工装与 主轴定位连接板、 压板、 后夹持板和前夹持板。 本发明设计的大、 中型电机叠压工装, 叠压 工装保证定子铁芯制作质量、精度及各项指标符合定子铁芯设计要求; 符合叠压时径向松开 叠片, 径向涨紧拍平, 保证精度符合标准后压紧、 焊接或扣片完成后, 径向松开脱模的工作 原理。 5、 专利号为 CN96121836. 3, 名称为 "叠片铁芯及其制造方法" 的发明专利, 该专利公 开了一种叠片铁芯, 其中每块薄芯片是按预定的结构尺寸冲压而成 , 并一片一片地堆叠起 来, 接着利用激光光束的连续辐照或点 辐照对由每个芯片边缘处的多个焊区进行辐照而使 芯片焊接组 合在一起, 以形成两个端面, 其特征是, 构成铁芯一个端面的 芯片具有对应于 所述焊区的一半焊区的第一缺口, 构成铁芯另 一个端面的芯片具有对应于所述焊区的另一 半焊区的第二缺口 ,构成铁芯所述另一端面的芯片的所述一半焊区对应于构成铁 芯的所述 一个端面的芯片的另一半焊区。 4. The patent number is CN201210045801. 0, the invention patent of "a laminated core and its manufacturing method", which discloses a large and medium-sized motor stator core, especially related to stacking on a horizontal press machine A large and medium-sized motor stator core lamination tooling. The tooling is laminated on a horizontal press machine, and the stacking tool comprises a tooling body, a tooling and a spindle positioning connecting plate, a pressing plate, a rear clamping plate and a front clamping plate. The large and medium-sized motor lamination tooling designed by the invention ensures that the quality, precision and various indexes of the stator core are in conformity with the design requirements of the stator core; the radial loosening lamination in accordance with the lamination, the radial tensioning Flat, to ensure the accuracy meets the standard, after pressing, welding or fastening, the working principle of radial release is released. 5, Patent No. CN96121836. 3, the invention patent entitled "Laminated iron core and its manufacturing method", the patent discloses a laminated core, wherein each thin chip is stamped according to a predetermined structural size. And stacking them one by one, and then using the continuous irradiation or spot irradiation of the laser beam to irradiate the plurality of pads at the edge of each chip to fuse the chips together to form two end faces, The chip is characterized in that a chip constituting one end surface of the iron core has a first notch corresponding to a half of the lands of the lands, and a chip constituting the other end face of the core has a second notch corresponding to the other half of the lands. The half pad of the chip constituting the other end face of the core corresponds to the other half pad of the chip constituting the one end face of the core.
6、有关论文与本发明相关的有如下一篇, 《电力机车与城轨车辆》 2003年第 01期 作者: 曾美扬, 论文题目为 "全叠片电机定子焊接工艺研究", 该论文提到 "针对大型的全叠片式 电机机座的焊接, 我们作了大量的试验, 从焊接方法、 焊接材料、 焊接规范等方面着手得出 了一系列的试验数据, 从而确定了焊接应力小、变形量小的焊接工艺, 使全叠片电机机座的 焊接质量完全达到了设计要求。焊接结构分析: 全叠片电机定子由前、后压圈, 硅钢片, 上、 下悬挂筋板, 连接筋板, 齿压板等组成。 上、 下悬挂筋板对称于电机一侧, 连接筋板均布于 电机定子圆周。 其复合结构见图 1。 全叠片电机定子焊缝类型有: ( 1 ) 筋板与硅钢片的角 接; ( 2 )筋板与压圈的对接; ( 3 )上下悬挂筋板与硅钢片之间的角接及与前、 后压圈的对 接。焊接之前用模具按顺序将定子前压圈、齿压板 1、硅钢片、齿压板 2、定子后压圈叠好, 通过油压机加压, 再用螺杆将叠压模与电机定子固定。将叠好的电机定子通过焊接工装固定 在焊接变位器上, 便于实现机座的对称焊接。 上述这些专利和论文虽然涉及到了电机定子铁芯的结构及其叠压制作方法,可仔细分析 可以看出, 这些专利都没有涉及到如何解决窄轨牵引电机轴向空间紧张, 导致铁芯往往侵占 了两端压圈的部分尺寸, 使得压圈甚至整个定子机座的设计难度大为增加的突出问题, 因此 很有必要对此加以改进。 发明内容 6, related papers related to the invention has the following one, "Electric Locomotives & Mass Transit Vehicles" 2003 01 Author: Zeng Mei Yang, the paper entitled "Research whole stator laminations welding process," the paper noted. " A large number of tests have been carried out on the welding of large full-stack motor bases. From the aspects of welding methods, welding materials and welding specifications, a series of test data have been obtained to determine the welding stress and deformation. The small welding process makes the welding quality of the fully laminated motor base fully meet the design requirements. Welding structure analysis: The fully laminated motor stator consists of front and rear pressing rings, silicon steel sheets, upper and lower hanging ribs, connecting ribs The upper and lower suspension ribs are symmetric to the motor side, and the connecting ribs are evenly distributed on the motor stator circumference. The composite structure is shown in Figure 1. The full laminated motor stator weld types are: (1) ribs The joint with the silicon steel sheet; (2) the butt joint of the rib and the press ring; (3) the joint between the upper and lower hanging ribs and the silicon steel sheet and the butt joint with the front and rear press rings. The mold is assembled in the order of the stator front pressure ring, the tooth pressure plate 1, the silicon steel sheet, the tooth pressure plate 2, the stator rear pressure ring, and is pressurized by the hydraulic press, and then the screw mold is fixed with the motor stator by the screw. It is fixed on the welding positioner by welding tooling, which is convenient for the symmetrical welding of the machine base. Although the above patents and papers relate to the structure of the stator core of the motor and the method of laminating the same, it can be seen that these patents are all It does not involve how to solve the axial space tension of the narrow-gauge traction motor, which causes the iron core to invade the partial size of the pressure ring at both ends, making the design of the pressing ring and even the entire stator frame difficult to increase, so it is necessary Improve this. Summary of the content
本发明所要解决的技术问题是: 针对窄轨牵引电机轴向空间紧张, 定子铁芯侵入两端定 子压圈的特点, 提供一种新型的窄轨机车牵引电机用定子铁芯叠压固定方法及装置, 该方法 及装置可以有效解决窄轨所对机车牵引电机轴向空间紧张的影响。在不影响定子机座整体的 机械强度和刚度的同时,保证在拉板面积覆盖率小的情况下铁芯叠压具有良好的固定定心效 果, 确保定子机座的稳固可靠。 The technical problem to be solved by the invention is: a novel stator core lamination fixing method for a narrow-gauge locomotive traction motor and a stator core intrusion to the stator compression ring at both ends for a narrow axial traction motor Device, the method And the device can effectively solve the influence of the narrow rail on the axial space tension of the traction motor of the locomotive. While not affecting the mechanical strength and rigidity of the stator base as a whole, it is ensured that the iron core lamination has a good fixed centering effect when the area coverage of the pull plate is small, and the stator frame is ensured to be stable and reliable.
按照本发明的发明目的所提出的技术方案是:一种窄轨机车牵引电机用定子铁芯叠压固 定方法, 在电机的两端定子压圈靠铁芯侧设置与定子铁芯叠片外径配合的止口, 止口直径的 公称尺寸与冲片外径相同, 定子铁芯叠片的两端卡在两端定子压圈的止口内, 两者间成过渡 配合, 配合关系由尺寸公差带保证; 电机的定子铁芯分为两大部分, 即侵入压圈的部分和裸 露在外的部分, 侵入压圈的部分的冲片外圆上设置有均布的槽口, 且侵入压圈的冲片片数与 压圈止口深度相配; 裸露在外的冲片数量再根据铁芯总长度进行确定; 对侵入两端压圈的部 分通过预先叠压成一定的高度叠片,并在槽口处通过焊接将侵入压圈的冲片部分叠片固定为 一整体, 形成焊叠片。  The technical solution proposed according to the object of the present invention is: a stator core lamination fixing method for a narrow-gauge locomotive traction motor, which is disposed on the iron core side of the stator at both ends of the motor and the outer diameter of the stator core lamination The matching opening has the same nominal diameter as the outer diameter of the punching piece. The two ends of the stator core lamination are caught in the end of the stator pressing ring at both ends, and the two are in a transitional fit. Guarantee; The stator core of the motor is divided into two parts, that is, the part that invades the pressure ring and the exposed part, and the outer circumference of the punching piece that penetrates the pressure ring is provided with a uniform notch, and the punching into the pressure ring The number of pieces matches the depth of the pressing ring; the number of exposed pieces is determined according to the total length of the core; the part of the pressing ring that is indented at both ends is pre-laminated into a certain height of lamination, and at the notch The laminated portion of the punching piece that invades the press ring is fixed as a whole by welding to form a welded laminated piece.
进一步地, 所述的定子铁芯叠片分成焊叠片和自由叠片两部分; 所述的焊叠片是由一部 分定子铁芯冲片叠压在一起后通过气体保护焊焊接起来, 形成焊叠片; 叠压时, 将焊叠片放 在两端压圈的止口内, 中间放置剩余的自由叠片, 再通过油压机将两端压圈压紧, 然后通过 筋板 (或称拉板) 焊接来固定两端压圈, 从而夹紧定子铁芯叠片。  Further, the stator core lamination is divided into two parts: a welding lamination and a free lamination; the welding lamination is a part of the stator core lamination laminated and then welded by gas shield welding to form a welding Lamination; When laminating, place the welding lamination in the end of the pressure ring at both ends, place the remaining free lamination in the middle, press the pressure ring at both ends through the hydraulic press, and then pass the rib (or pull plate) Welding to fix the crimping rings at both ends, thereby clamping the stator core laminations.
进一步地, 所述的槽口是 "U"型或半圆型, 且保证叠片的槽口在焊接后的外表面不高 于叠片的外圆面。  Further, the notch is of a "U" shape or a semicircular shape, and the notch of the lamination is not higher than the outer surface of the lamination after welding.
进一步地, 通过筋板(拉板)两侧的角焊缝将铁芯叠片、筋板(拉板)也形成一个整体。 即侵入压圈内的冲片通过焊接固定在一起,焊叠片与自由叠片通过角焊缝固定在一起,因此, 两端压圈、 筋板 (拉板)、 焊叠片和自由叠片连接为稳固的整体。  Further, the core laminations and the ribs (pull plates) are also integrally formed by the fillet welds on both sides of the ribs (pull plates). That is, the punching pieces in the intrusion ring are fixed by welding, and the welding laminations and the free laminations are fixed by the fillet welds, so that the two end pressing rings, the ribs (pull plates), the welding laminations and the free laminations The connection is a solid whole.
进一步地, 所述的止口的深度根据电机轴向空间的分配来确定。  Further, the depth of the stop is determined according to the distribution of the axial space of the motor.
进一步地, 所述的止口的直径是根据铁芯叠片的外径来确定,其公差是考虑铁芯叠片叠 压后的尺寸偏差来确定的, 以保证两者的同轴度达到定心效果。  Further, the diameter of the opening is determined according to the outer diameter of the core lamination, and the tolerance is determined by considering the dimensional deviation of the lamination of the iron lamination to ensure that the coaxiality of the two is fixed. Heart effect.
根据上述方法所提出的窄轨机车牵引电机用定子铁芯叠压固定结构为,一种窄轨机车牵 引电机用定子铁芯叠压固定装置, 包括定子压圈和定子铁芯叠片, 在电机的两端定子压圈靠 铁芯侧设置有与定子铁芯叠片外径配合的止口, 止口直径的公称尺寸与冲片外径相同, 定子 铁芯叠片的两端卡在两端定子压圈的止口内, 两者间成过渡配合, 配合关系由尺寸公差带保 证; 电机的定子铁芯分为两大部分, 即侵入压圈的部分和裸露在外的部分, 侵入压圈的部分 的冲片外圆上设置有均布的槽口, 且侵入压圈的冲片片数与压圈止口深度相配; 裸露在外的 冲片数量再根据铁芯总长度进行确定;对侵入两端压圈的部分通过预先叠压成一定的高度叠 片, 并在槽口处通过焊接将侵入压圈的冲片部分叠片固定为一整体, 形成焊叠片。 According to the above method, a stator core lamination fixing structure for a narrow-gauge locomotive traction motor is a stator core lamination fixing device for a narrow-gauge locomotive traction motor, comprising a stator pressing ring and a stator core lamination, in the motor The stator press ring at both ends is provided with a stop corresponding to the outer diameter of the stator core lamination on the iron core side, the nominal size of the stop diameter is the same as the outer diameter of the punching piece, and the two ends of the stator core lamination are stuck at both ends In the stop of the stator pressure ring, the transition between the two is made, and the mating relationship is guaranteed by the dimensional tolerance band. The stator core of the motor is divided into two parts, that is, the part that invades the press ring and the exposed part, and the part that invades the press ring. The outer circumference of the punching piece is provided with a uniform notch, and the number of punching pieces invading the pressing ring is matched with the depth of the pressing ring; the bare outer The number of punching pieces is determined according to the total length of the iron core; the portions of the pressing ring that are intruded at both ends are pre-laminated into a certain height laminated piece, and the laminated portion of the punching piece that invades the pressing ring is fixed by welding at the notch. In one piece, a solder laminate is formed.
进一步地, 所述的定子铁芯叠片分成焊叠片和自由叠片两部分; 所述的焊叠片是由一部 分定子铁芯冲片叠压在一起后通过气体保护焊焊接起来, 形成焊叠片; 叠压时, 将焊叠片放 在两端压圈的止口内, 中间放置剩余的自由叠片, 再通过油压机将两端压圈压紧, 然后通过 筋板 (或称拉板) 焊接来固定两端压圈, 从而夹紧定子铁芯叠片。  Further, the stator core lamination is divided into two parts: a welding lamination and a free lamination; the welding lamination is a part of the stator core lamination laminated and then welded by gas shield welding to form a welding Lamination; When laminating, place the welding lamination in the end of the pressure ring at both ends, place the remaining free lamination in the middle, press the pressure ring at both ends through the hydraulic press, and then pass the rib (or pull plate) Welding to fix the crimping rings at both ends, thereby clamping the stator core laminations.
进一步地, 所述的槽口是 "U"型或半圆型, 且保证叠片的槽口在焊接后的外表面部高 于叠片的外圆面。  Further, the notch is of a "U" shape or a semicircular shape, and the notch of the lamination is ensured that the outer surface portion after welding is higher than the outer circumferential surface of the lamination.
进一步地, 通过筋板(拉板)两侧的角焊缝将铁芯叠片、筋板(拉板)也形成一个整体。 即侵入压圈内的冲片通过焊接固定在一起,焊叠片与自由叠片通过角焊缝固定在一起,因此, 两端压圈、 筋板 (拉板)、 焊叠片和自由叠片连接为稳固的整体。  Further, the core laminations and the ribs (pull plates) are also integrally formed by the fillet welds on both sides of the ribs (pull plates). That is, the punching pieces in the intrusion ring are fixed by welding, and the welding laminations and the free laminations are fixed by the fillet welds, so that the two end pressing rings, the ribs (pull plates), the welding laminations and the free laminations The connection is a solid whole.
进一步地, 所述的止口的深度根据电机轴向空间的分配来确定。  Further, the depth of the stop is determined according to the distribution of the axial space of the motor.
进一步地, 所述的止口的直径是根据铁芯叠片的外径来确定,其公差是考虑铁芯叠片叠 压后的尺寸偏差来确定的, 以保证两者的同轴度达到定心效果。  Further, the diameter of the opening is determined according to the outer diameter of the core lamination, and the tolerance is determined by considering the dimensional deviation of the lamination of the iron lamination to ensure that the coaxiality of the two is fixed. Heart effect.
本发明的有益效果: 本发明通过将部分定子铁芯叠片分成两部分, 一部分定子铁芯冲片 叠压在一起后通过气体保护焊焊接起来, 形成焊叠片, 并将焊叠片通过工装放置到定子压圈 的止口内, 这样可以有效解决因窄轨机车牵引电机定子机座由于轴向空间的限制, 铁芯往往 侵占了两端压圈的部分尺寸,导致定子压圈与定子铁芯叠片在空间尺寸分配上出现冲突的问 题, 保证在拉板面积覆盖率小的情况下铁芯叠压具有良好的固定定心效果, 确保定子机座的 稳固可靠。 本发明实施方式简单, 易于工程化, 叠压固定方式牢固可靠, 适合窄轨机车牵引 电机定子机座制造。 附图说明 图 1为本发明一个实施例的结构示意图; 图 2为本发明一个实施例的定子铁芯叠片结构示意图; 图 3为附图 2的侧面示意图。 具体实施方式 下面将结合附图和实施例对本发明做进一步的描述。  Advantageous Effects of the Invention: The present invention divides a part of the stator core lamination into two parts, a part of the stator core pieces are laminated together and then welded by gas shield welding to form a welding lamination, and the welding lamination is passed through the tooling It is placed in the stop of the stator pressing ring, which can effectively solve the limitation of the axial space of the stator frame of the traction motor of the narrow-gauge locomotive. The iron core often encroaches on the partial size of the pressing ring at both ends, resulting in the stator pressing ring and the stator core. The problem of conflicts in the spatial size distribution of the laminations ensures that the core lamination has a good fixed centering effect in the case of a small area coverage of the pull plate, ensuring the stability and reliability of the stator frame. The embodiment of the invention is simple, easy to be engineered, and the lamination fixing method is firm and reliable, and is suitable for the manufacture of the stator frame of the traction motor of the narrow-gauge locomotive. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural view of an embodiment of the present invention; FIG. 2 is a schematic view showing the structure of a stator core lamination according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION The present invention will be further described with reference to the accompanying drawings and embodiments.
通过附图可以看出本发明为一种窄轨机车牵引电机用定子铁芯叠压固定方法,在电机的 两端定子压圈靠铁芯侧设置与定子铁芯叠片外径配合的止口,止口直径的公称尺寸与冲片外 径相同, 定子铁芯叠片的两端卡在两端定子压圈的止口内, 两者间成过渡配合, 配合关系由 尺寸公差带保证; 电机的定子铁芯分为两大部分, 即侵入压圈的部分和裸露在外的部分, 侵 入压圈的部分的冲片外圆上设置有均布的槽口, 且侵入压圈的冲片片数与压圈止口深度相 配; 裸露在外的冲片数量再根据铁芯总长度进行确定; 对侵入两端压圈的部分通过预先叠压 成一定的高度叠片, 并在槽口处通过焊接将侵入压圈的冲片部分叠片固定为一整体, 形成焊 进一步地, 所述的定子铁芯叠片分成焊叠片和自由叠片两部分; 所述的焊叠片是由一部 分定子铁芯冲片叠压在一起后通过气体保护焊焊接起来, 形成焊叠片; 叠压时, 将焊叠片放 在两端压圈的止口内, 中间放置剩余的自由叠片, 再通过油压机将两端压圈压紧, 然后通过 筋板 (或称拉板) 焊接来固定两端压圈, 从而夹紧定子铁芯叠片。 It can be seen from the drawings that the present invention is a stator core lamination fixing method for a narrow-gauge locomotive traction motor, in the motor The stator pressure ring at both ends is arranged on the iron core side to match the outer diameter of the stator core lamination. The nominal size of the nozzle diameter is the same as the outer diameter of the punching piece, and the two ends of the stator core lamination are clamped at both ends of the stator. In the ring of the ring, the transition between the two is matched, and the matching relationship is guaranteed by the dimensional tolerance band. The stator core of the motor is divided into two parts, that is, the part that invades the pressure ring and the exposed part, and the part that invades the pressure ring. The outer circumference of the sheet is provided with a uniform notch, and the number of punching pieces invading the pressing ring is matched with the depth of the pressing ring; the number of the punched pieces exposed is determined according to the total length of the iron core; The portion is pre-laminated into a certain height lamination, and the lamination portion of the punching intrusion ring is fixed as a whole by welding at the notch, and further, the stator core lamination is divided into welding. a laminated piece and a free laminated piece; the welded laminated piece is laminated by a part of the stator core punching piece and welded by gas shield welding to form a welded laminated piece; when laminating, the welded laminated piece is placed In the mouth of the pressure ring at both ends, Remaining free placed between the laminations, then the hydraulic machine by pressing both ends of the pressure ring, and then through the ribs (or tie plate) are welded to both ends of the pressure ring is fixed, so that the clamping of the stator core laminations.
进一步地, 所述的槽口是 "U"型或半圆型, 且保证叠片的槽口在焊接后的外表面部高 于叠片的外圆面。  Further, the notch is of a "U" shape or a semicircular shape, and the notch of the lamination is ensured that the outer surface portion after welding is higher than the outer circumferential surface of the lamination.
进一步地, 通过筋板(拉板)两侧的角焊缝将铁芯叠片、筋板(拉板)也形成一个整体。 即侵入压圈内的冲片通过焊接固定在一起,焊叠片与自由叠片通过角焊缝固定在一起,因此, 两端压圈、 筋板 (拉板)、 焊叠片和自由叠片连接为稳固的整体。  Further, the core laminations and the ribs (pull plates) are also integrally formed by the fillet welds on both sides of the ribs (pull plates). That is, the punching pieces in the intrusion ring are fixed by welding, and the welding laminations and the free laminations are fixed by the fillet welds, so that the two end pressing rings, the ribs (pull plates), the welding laminations and the free laminations The connection is a solid whole.
进一步地, 所述的止口的深度根据电机轴向空间的分配来确定。  Further, the depth of the stop is determined according to the distribution of the axial space of the motor.
进一步地, 所述的止口的直径是根据铁芯叠片的外径来确定,其公差是考虑铁芯叠片叠 压后的尺寸偏差来确定的, 以保证两者的同轴度达到定心效果。  Further, the diameter of the opening is determined according to the outer diameter of the core lamination, and the tolerance is determined by considering the dimensional deviation of the lamination of the iron lamination to ensure that the coaxiality of the two is fixed. Heart effect.
根据上述方法所提出的窄轨机车牵引电机用定子铁芯叠压固定结构为,一种窄轨机车牵 引电机用定子铁芯叠压固定装置, 包括定子压圈 1和定子铁芯叠片 2, 在电机的两端定子压 圈 1靠铁芯侧设置有与定子铁芯叠片外径配合的止口 3, 止口直径的公称尺寸与冲片外径相 同, 定子铁芯叠片 2的两端卡在两端定子压圈 1的止口 3内, 两者间成过渡配合, 配合关系 由尺寸公差带保证; 电机的定子铁芯分为两大部分, 即侵入两端定子压圈 1的止口 3内的部 分和裸露在外的部分,侵入两端定子压圈 1的止口 3内的部分的冲片外圆上设置有均布的槽 口 7, 且侵入压圈的冲片片数与压圈止口深度基本相配; 裸露在外的冲片数量再根据铁芯总 长度进行确定; 对侵入两端压圈的部分通过预先叠压成一定的高度叠片, 并在槽口 7处通过 焊接将侵入压圈的冲片部分叠片固定为一整体, 形成焊叠片 4, 两个焊叠片 4之间为自由叠 片 5; 在两个焊叠片 4靠定子压圈 1的一面设有齿压板 6, 固定焊叠片 4。 进一步地, 所述的定子铁芯叠片 2分成焊叠片 4和自由叠片 5两部分; 所述的焊叠片 4 是由一部分定子铁芯冲片叠压在一起后通过气体保护焊焊接起来, 形成焊叠片; 叠压时, 将 焊叠片放在两端压圈的止口 3内,中间放置剩余的自由叠片 5,在通过压机将两端压圈压紧, 然后通过筋板 8 (或称拉板) 焊接来固定两端压圈, 从而夹紧定子铁芯叠片。 The stator core lamination fixing structure for a narrow-gauge locomotive traction motor according to the above method is a stator core laminating fixing device for a narrow-gauge locomotive traction motor, comprising a stator pressing ring 1 and a stator core lamination 2, At both ends of the motor, the stator press ring 1 is provided with a stop 3 which is matched with the outer diameter of the stator core lamination on the side of the iron core. The nominal size of the stop diameter is the same as the outer diameter of the punch, and the two of the stator core laminations 2 The end card is in the end 3 of the stator pressing ring 1 at both ends, and the two are in a transitional fit, and the mating relationship is ensured by the dimensional tolerance band; the stator core of the motor is divided into two parts, that is, the stator pressing ring 1 is invaded at both ends. The portion inside the mouthpiece 3 and the exposed portion, the portion of the punching piece that intrudes into the stopper 3 of the stator ring 1 at both ends is provided with a uniform notch 7 on the outer circumference of the punching piece, and the number of punching pieces invading the pressing ring It is basically matched with the depth of the pressing ring; the number of exposed punches is determined according to the total length of the iron core; the portion of the pressing ring that invades both ends is pre-laminated into a certain height laminated piece and passed through the notch 7 The welding will fix the laminated part of the punching piece that invades the pressing ring as a whole A soldering lamination 4 is formed, and a free lamination 5 is formed between the two welding laminations 4; a tooth pressing plate 6 is provided on one side of the two welding laminations 4 against the stator pressing ring 1, and the welding lamination 4 is fixed. Further, the stator core lamination 2 is divided into two parts: a solder lamination 4 and a free lamination 5; the solder lamination 4 is laminated by a part of the stator core sheets and then welded by gas shielded welding. Forming a welded laminate; when laminating, placing the welded laminate in the mouth 3 of the pressure ring at both ends, placing the remaining free laminate 5 in the middle, pressing the two ends through the press, and then passing The ribs 8 (or pull plates) are welded to secure the crimping rings at both ends to clamp the stator core laminations.
进一步地, 所述的槽口 7是 " U"型或 "V"或半圆型, 且保证叠片的槽口 7在焊接后的 外表面部高于叠片的外圆面。  Further, the notch 7 is of a "U" type or a "V" or a semicircular shape, and the notch 7 of the lamination is ensured that the outer surface portion after welding is higher than the outer circumferential surface of the lamination.
进一步地, 通过筋板 8 (拉板) 两侧的角焊缝将铁芯叠片、 筋板 8 (拉板) 也形成一个 整体。 即侵入压圈内的冲片通过焊接固定在一起, 焊叠片 4与自由叠片 5通过角焊缝固定在 一起, 因此, 两端定子压圈 1、 筋板 8 (拉板)、 焊叠片 4和自由叠片 5连接为稳固的整体。  Further, the core laminations and the ribs 8 (pull plates) are also integrally formed by the fillet welds on both sides of the ribs 8 (pull plates). That is, the punching pieces in the intrusion ring are fixed together by welding, and the welding laminations 4 and the free laminations 5 are fixed by the fillet welds. Therefore, the stator pressing ring at both ends, the ribs 8 (pull plates), and the welding stack The sheet 4 and the free laminate 5 are joined as a solid unit.
进一步地, 所述的止口 3的深度根据电机轴向空间的分配来确定。  Further, the depth of the port 3 is determined according to the distribution of the axial space of the motor.
进一步地, 所述的止口 3的直径是根据铁芯叠片的外径来确定,其公差是考虑铁芯叠片 叠压后的尺寸偏差来确定的, 以保证两者的同轴度达到定心效果。 本发明的有益效果: 本发明通过将部分定子铁芯叠片分成两部分, 一部分定子铁芯冲 片叠压在一起后通过气体保护焊焊接起来, 形成焊叠片, 叠压时, 并将焊叠片通过工装放置 到定子压圈的止口内, 中间放置剩余的叠片, 然后通过筋板 (拉板) 焊接来固定两端压圈, 从而加紧铁芯。 同时, 通过筋板 (拉板)两侧的角焊缝将铁芯叠片、 筋板 (拉板) 也形成一 个整体。 即侵入压圈内的冲片通过 TIG焊固定在一起, 焊叠片与自由叠片通过角焊缝固定在 一起, 因此, 两端压圈、 筋板 (拉板)、 焊叠片和自由叠片连接为稳固的整体; 这样可以有 效解决因窄轨机车牵引电机定子机座由于轴向空间的限制,铁芯往往侵占了两端压圈的部分 尺寸, 导致定子压圈与定子铁芯叠片在空间尺寸分配上出现冲突的问题, 保证在拉板面积覆 盖率小的情况下铁芯叠压具有良好的固定定心效果, 确保定子机座的稳固可靠。本发明实施 方式简单, 易于工程化, 叠压固定方式牢固可靠, 适合窄轨机车牵引电机定子机座制造。  Further, the diameter of the opening 3 is determined according to the outer diameter of the core lamination, and the tolerance is determined by considering the dimensional deviation of the lamination of the iron lamination to ensure the coaxiality of the two is achieved. Centering effect. Advantageous Effects of the Invention: The present invention divides a part of the stator core lamination into two parts, and a part of the stator core lamination pieces are laminated together and then welded by gas shield welding to form a welding lamination, when laminating, and welding The laminations are placed in the stopper of the stator pressing ring by the tooling, and the remaining laminations are placed in the middle, and then the ferrules (sliding plates) are welded to fix the pressing rings at both ends, thereby tightening the iron core. At the same time, the core laminations and the ribs (pull plates) are also formed into one piece through the fillet welds on both sides of the ribs (pull plates). That is, the punching pieces in the intrusion ring are fixed together by TIG welding, and the welding laminations and the free laminations are fixed by the fillet welds, so that the two ends of the pressing ring, the ribs (pull plates), the welding laminations and the free stack The connection of the pieces is a stable whole; this can effectively solve the limitation of the axial space of the stator frame of the traction motor of the narrow-gauge locomotive, the iron core often encroaches on the partial size of the pressure ring at both ends, resulting in the stator compression ring and the stator core lamination There is a conflict in the space size distribution, which ensures that the core lamination has a good fixed centering effect when the area of the pull plate is small, ensuring the stability and reliability of the stator frame. The embodiment of the invention is simple, easy to be engineered, and the lamination fixing method is firm and reliable, and is suitable for the manufacture of the stator frame of the traction motor of the narrow rail locomotive.
很显然, 上述实施例只是本发明, 只是为了说明本发明所列举的几个实例, 任何本领 域内普通的技术人员的简单更改和替换都是本发明的保护之内。  It is to be understood that the above-described embodiments are merely illustrative of the invention, and are merely illustrative of the several embodiments of the invention, and any modifications and substitutions of ordinary skill in the art are within the scope of the invention.

Claims

权 利 要 求 书  Claims
1、 一种窄轨机车牵引电机用定子铁芯叠压固定方法, 其特征在于, 在电机的两端定子 压圈靠铁芯侧设置与定子铁芯叠片外径配合的止口, 止口直径的公称尺寸与冲片外径相同, 定子铁芯叠片的两端卡在两端定子压圈的止口内, 两者间成过渡配合, 配合关系由尺寸公差 带保证; 电机的定子铁芯分为两大部分, 即侵入压圈的部分和裸露在外的部分, 侵入压圈的 部分的冲片外圆上设置有均布的槽口, 且侵入压圈的冲片片数与压圈止口深度相配; 裸露在 外的冲片数量再根据铁芯总长度进行确定;对侵入两端压圈的部分通过预先叠压成一定的高 度叠片, 并在槽口处通过焊接将侵入压圈的冲片部分叠片固定为一整体, 形成焊叠片。 A stator core lamination fixing method for a traction motor for a narrow-gauge locomotive, characterized in that: at both ends of the motor, the stator pressing ring is arranged on the iron core side to be arranged with the outer diameter of the stator core lamination, and the mouth is closed. The nominal size of the diameter is the same as the outer diameter of the punching piece. The two ends of the stator core lamination are caught in the stop of the stator pressing ring at both ends, and the two are in a transitional fit. The mating relationship is ensured by the dimensional tolerance band; the stator core of the motor Divided into two parts, that is, the part that invades the pressure ring and the exposed part, the outer circle of the punching piece that penetrates the pressure ring is provided with a uniform notch, and the number of punching pieces that invade the pressing ring and the pressing ring The depth of the mouth is matched; the number of exposed punches is determined according to the total length of the core; the portions of the indented ends are pre-laminated into a certain height lamination, and the indentation is indented at the notch by welding. The laminated portion of the punching piece is fixed as a whole to form a welded laminated piece.
2、 如权利要求 1所述的窄轨机车牵引电机用定子铁芯叠压固定方法, 其特征在于, 所 述的定子铁芯叠片分成焊叠片和自由叠片两部分;所述的焊叠片是由一部分定子铁芯冲片叠 压在一起后通过气体保护焊焊接起来, 形成焊叠片; 叠压时, 将焊叠片放在两端压圈的止口 内, 中间放置剩余的自由叠片, 再通过油压机将两端压圈压紧, 然后通过筋板 (或称拉板) 焊接来固定两端压圈, 从而夹紧定子铁芯叠片。  2. The stator core lamination fixing method for a narrow-gauge locomotive traction motor according to claim 1, wherein the stator core lamination is divided into a welding lamination and a free lamination; the welding The laminated piece is laminated by a part of the stator core punching piece and welded by gas shielded welding to form a welded laminated piece; when laminating, the welding laminated piece is placed in the stop ring of the both ends of the pressing ring, and the remaining free space is placed in the middle. The laminations are then pressed by the hydraulic press to press the two ends of the press ring, and then the ferrules (or pull plates) are welded to fix the press rings at both ends, thereby clamping the stator core laminations.
3、 如权利要求 2所述的窄轨机车牵引电机用定子铁芯叠压固定方法, 其特征在于, 所 述的槽口是 "U"型或半圆型, 且保证叠片的槽口在焊接后的外表面不高于叠片的外圆面。  3. The stator core lamination fixing method for a narrow-gauge locomotive traction motor according to claim 2, wherein the notch is a "U" type or a semi-circular shape, and the notch of the lamination is welded. The rear outer surface is not higher than the outer circular surface of the lamination.
4、 如权利要求 3所述的窄轨机车牵引电机用定子铁芯叠压固定方法, 其特征在于, 通 过筋板(拉板)两侧的角焊缝将铁芯叠片、 筋板(拉板)也形成一个整体。 即侵入压圈内的 冲片通过槽口焊接固定在一起,焊叠片与自由叠片通过角焊缝固定在一起, 因此,两端压圈、 筋板 (拉板)、 焊叠片和自由叠片连接为稳固的整体。  4. The stator core lamination fixing method for a traction motor for a narrow-gauge locomotive according to claim 3, wherein the iron core lamination and the rib plate are pulled by the fillet welds on both sides of the rib plate (pull plate) The board) also forms a whole. That is, the punching pieces in the intrusion ring are fixed by the slot welding, and the welding laminations and the free laminations are fixed by the fillet welds, so that the two end pressing rings, the ribs (pull plates), the welding laminations and the freedom The laminations are connected as a solid unit.
5、 如权利要求 2所述的窄轨机车牵引电机用定子铁芯叠压固定方法, 其特征在于, 所 述的止口的深度根据电机轴向空间的分配来确定。  The stator core lamination fixing method for a narrow-gauge locomotive traction motor according to claim 2, wherein the depth of the nozzle is determined according to the distribution of the axial space of the motor.
6、 根据权利要求 1所述方法的窄轨机车牵引电机用定子铁芯叠压固定装置, 包括定子 压圈和定子铁芯叠片, 其特征在于, 在电机的两端定子压圈靠铁芯侧设置有与定子铁芯叠片 外径配合的止口, 止口直径的公称尺寸与冲片外径相同, 定子铁芯叠片的两端卡在两端定子 压圈的子口内, 两者间成过渡配合, 配合关系由尺寸公差带保证; 电机的定子铁芯分为两大 部分, 即侵入压圈的部分和裸露在外的部分, 侵入压圈的部分的冲片外圆上设置有均布的槽 口, 且侵入压圈的冲片片数与压圈止口深度相配; 裸露在外的冲片数量再根据铁芯总长度进 行确定; 对侵入两端压圈的部分通过预先叠压成一定的高度叠片, 并在槽口处通过焊接将侵 入压圈的冲片部分叠片固定为一整体, 形成焊叠片。 权 利 要 求 书 6. The stator core lamination fixing device for a narrow-gauge locomotive traction motor according to the method of claim 1, comprising a stator pressing ring and a stator core lamination, wherein the stator is pressed against the iron core at both ends of the motor The side is provided with a stop mouth matched with the outer diameter of the stator core lamination, the nominal size of the port diameter is the same as the outer diameter of the punching piece, and the two ends of the stator core lamination are caught in the sub-ports of the stator pressing ring at both ends, both The transitional fit is coordinated, and the mating relationship is guaranteed by the dimensional tolerance zone; the stator core of the motor is divided into two parts, that is, the part that invades the press ring and the exposed part, and the outer circle of the punched part of the intrusion ring is provided with The notch of the cloth, and the number of punching pieces invading the pressing ring is matched with the depth of the pressing ring; the number of the exposed pieces is determined according to the total length of the iron core; the portions of the pressing ring at both ends are pre-stacked by A certain height of the lamination, and the lamination of the punching portion of the indentation ring is fixed as a whole by welding at the notch to form a welded lamination. Claim
7、 如权利要求 6所述的窄轨机车牵引电机用定子铁芯叠压固定装置, 其特征在于, 所 述的定子铁芯叠片分成焊叠片和自由叠片两部分;所述的焊叠片是由一部分定子铁芯冲片叠 压在一起后通过气体保护焊焊接起来, 形成焊叠片; 叠压时, 将焊叠片放在两端压圈的止口 内, 中间放置剩余的自由叠片, 在通过压机将两端压圈压紧, 然后通过筋板(或称拉板)焊 接来固定两端压圈, 从而夹紧定子铁芯叠片。  The stator core lamination fixing device for a narrow-gauge locomotive traction motor according to claim 6, wherein the stator core lamination is divided into a welding lamination and a free lamination; the welding The laminated piece is laminated by a part of the stator core punching piece and welded by gas shielded welding to form a welded laminated piece; when laminating, the welding laminated piece is placed in the stop ring of the both ends of the pressing ring, and the remaining free space is placed in the middle. The laminations are pressed against the two ends by a press, and then welded by ribs (or pull plates) to fix the two end pressing rings, thereby clamping the stator core laminations.
8、 如权利要求 7所述的窄轨机车牵引电机用定子铁芯叠压固定装置, 其特征在于, 所 述的槽口是 "U"型或 "V"或半圆型, 且保证叠片的槽口在焊接后的外表面不高于叠片的外 圆面。  8. The stator core lamination fixing device for a traction motor for a narrow gauge locomotive according to claim 7, wherein the notch is "U" type or "V" or semicircular, and the lamination is ensured. The outer surface of the notch after welding is not higher than the outer circumference of the lamination.
9、 如权利要求 8所述的窄轨机车牵引电机用定子铁芯叠压固定装置, 其特征在于, 通 过筋板(拉板)两侧的角焊缝将铁芯叠片、 筋板(拉板)也形成一个整体。 即侵入压圈内的 冲片通过焊接固定在一起, 焊叠片与自由叠片通过角焊缝固定在一起, 因此, 两端压圈、 筋 板 (拉板)、 焊叠片和自由叠片连接为稳固的整体。  9. The stator core lamination fixing device for a traction motor for a narrow-gauge locomotive according to claim 8, wherein the iron core lamination and the rib plate are pulled by the fillet welds on both sides of the rib plate (pull plate) The board) also forms a whole. That is, the punching pieces in the intrusion ring are fixed by welding, and the welding laminations and the free laminations are fixed by the fillet welds, so that the two end pressing rings, the ribs (pull plates), the welding laminations and the free laminations The connection is a solid whole.
10、 如权利要求 7所述的窄轨机车牵引电机用定子铁芯叠压固定装置, 其特征在于, 所 述的止口的深度根据电机轴向空间的分配来确定。止口的直径是根据铁芯叠片的外径来确定, 其公差是考虑铁芯叠片叠压后的尺寸偏差来确定的, 以保证两者的同轴度达到定心效果。  The stator core lamination fixing device for a narrow-gauge locomotive traction motor according to claim 7, wherein the depth of the opening is determined according to the distribution of the axial space of the motor. The diameter of the mouth is determined according to the outer diameter of the core lamination, and the tolerance is determined by considering the dimensional deviation of the lamination of the iron lamination to ensure the concentricity of the two.
PCT/CN2014/074895 2014-04-08 2014-04-08 Method and device for stacking and fixing stator core used in traction motor of narrow gauge locomotive WO2015154220A1 (en)

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CN201480077316.9A CN106415993A (en) 2014-04-08 2014-04-08 Method and device for stacking and fixing stator core used in traction motor of narrow gauge locomotive
PCT/CN2014/074895 WO2015154220A1 (en) 2014-04-08 2014-04-08 Method and device for stacking and fixing stator core used in traction motor of narrow gauge locomotive
AU2014390614A AU2014390614B2 (en) 2014-04-08 2014-04-08 Method and device for stacking and fixing stator core used in traction motor of narrow gauge locomotive
ZA2016/06700A ZA201606700B (en) 2014-04-08 2016-09-28 Method and device for stacking and fixing stator core used in traction motor of narrow gauge locomotive

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JP2001112197A (en) * 1999-10-06 2001-04-20 Denso Corp Dynamo-electric machine
CN2508885Y (en) * 2001-10-31 2002-09-04 陈达生 Brushless power generating electric welding two-purpose machine with exciter
CN201048306Y (en) * 2007-06-20 2008-04-16 中国北车集团永济电机厂 Top drive motor stator iron core
CN102237728A (en) * 2011-05-12 2011-11-09 无锡市中达电机有限公司 Stator structure without stator end plate and pressing ring
CN202363997U (en) * 2011-12-02 2012-08-01 上海南洋电机有限公司 Fastening structure of stator core of alternating current motor

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