CN2268337Y - high-power ac. arc-welding generator - Google Patents

high-power ac. arc-welding generator Download PDF

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Publication number
CN2268337Y
CN2268337Y CN 96202568 CN96202568U CN2268337Y CN 2268337 Y CN2268337 Y CN 2268337Y CN 96202568 CN96202568 CN 96202568 CN 96202568 U CN96202568 U CN 96202568U CN 2268337 Y CN2268337 Y CN 2268337Y
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China
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welding
generator
rotor
stator
high
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CN 96202568
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Chinese (zh)
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吴文达
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吴文达
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Abstract

The utility model relates to a high-power AC arc-welding generator driven by a prime mover (a motor or a gasoline engine). The high-power AC arc-welding generator is composed of a stator (4) and a distributed polar rotor (7); the stator (4) is formed by that 60 grooves are punched on an inner ring of a stator iron core (1), and a no-magnetic-leakage AC welding winding (2) with mutually crossed three-phase and single-phase, and an auxiliary power supply winding (3) are embedded and manufactured on the stator iron core (1). A welding-current sampling module (8) is adopted to complete the excitation of the rotor and the soft start of welding process, and a brushless excitation device (9) is adopted to realize the brushless excitation of the rotor. The utility model mainly solves the problems of low efficiency, low material using ratio, and unreliable exciting mode of a carbon brush and slip rings in similar products. The utility model has the advantages of small volume, light weight and high reliability of the entire machine, the efficiency can reach more than 60%, and the material using ratio reaches 90%; the high-power AC arc-welding generator is more suitable for welding under the condition of no electrical source and supplying electrical power for other electric appliances.

Description

大功率交流弧焊发电机 AC arc welding power generator

本实用新型涉及一种由原动机(电机、汽油机等)驱动的大功率交流弧焊发电机。 The present invention relates to a prime mover (motor, gasoline engine) driving the high-power AC arc welding generator.

现有的该类型焊机,一类属于工频50HZ,故整机体积较大、笨重、对于野外作业的用户极为不便;而另一类属于中频直流焊机,虽然其克服了前者的缺点,在技术上有所发展,但由于其转子为爪极式磁盘多极转子,故整机效率较低,仅为40%左右,发电机发热量较大,温升较高,并且材料利用率低,仅为20%左右;同时其励磁系统为碳刷、滑环式励磁系统,故整机在工作过程中可靠性较低,且易被磨损,使用极为不便。 This type of conventional welder, belongs to a class of frequency 50HZ, so the larger machine size, heavy for field work is extremely inconvenient user; while the other belongs to the intermediate DC welder, although it overcomes the disadvantages of the former, has been developed in the art, but because of its rotor multi-pole claw pole rotor disk, so overall efficiency is low, only about 40%, large amount of heat generators, high temperature, and the material utilization is low , only about 20%; while its excitation system of brushes, slip-ring excitation system, so the reliability of the machine during operation is low, and susceptible to wear, extremely inconvenient.

本实用新型的目的是提供一种定子无励磁绕组,且绕有无漏磁焊接绕组的定子;采用隐极式转子;无刷方式激磁;用电流取样模块提供转子激磁的大功率交流弧焊发电机。 The object of the present invention is to provide a non-excitation of the stator winding is wound and welded seamless magnetic stator winding; implicit pole rotor; brushless excitation mode; rotor excitation provided by the AC arc welding current sampling module power generation machine.

本实用新型是这样实现的:用内环冲有60槽的环形硅钢片经叠铆后制成定子铁芯(1),在定子铁芯(1)槽内嵌有磁极互相铰链的无漏磁三相及单相交叉的交流焊接绕组(2),辅助绕组(3)构成发电机定子(4),并安于发电机壳体内。 The present invention is achieved: by the inner punch made of a stator core (1) after an annular groove 60 of the stacked silicon steel sheets by riveting, the stator core (1) embedded in the groove seamless magnetic poles each hinge three-phase and single-phase AC welding crossing winding (2), an auxiliary winding (3) constituting the generator stator (4), and the content with the generator housing. 用外圆冲有20槽的圆形硅钢片叠铆后制成转子铁芯(5),在转子铁芯(5)槽内嵌有磁极互相铰链的激磁绕组(6)构成发电机隐极式转子(7),并安装于发电机轴上。 With a cylindrical punch having a circular groove 20 made of silicon steel sheets of the rotor core (5) stacked after riveting, the rotor core (5) is embedded in the groove exciting winding poles each hinge (6) constituting the salient pole generator a rotor (7), and mounted on the generator shaft.

发电机由安装于控制板上的电流取样模块(8)内装有焊接电压比较器(10)取出焊接电流的瞬态变化量经放大后送至电流取样模块(8)内的电子开关(11),至使电子并关(11)将焊接电流的部份通过无刷励磁器(9)馈给隐极式转子(7)进行激磁及发电机下降外特性的调节。 Generator mounted on the control board by a current sampling module (8) that has the welding voltage comparator (10) to the current sampling switch out the electronic module (8) after the transient change amount of the welding current through the amplifying (11) , and to the electronic switch (11) the welding current part (9) is fed to a salient pole rotor (7) and the excitation characteristics of the generator by an outer down-regulates the brushless exciter. 电流取样模块(8)的A点联至发电机焊接输出之正极,B点联接至焊钳,C点联接至转子(7),D点联接至发电机焊接输出之负极。 Current sampling module (8) with the point A to the positive output of the welding generator, B coupled to the welding tongs point, C point is coupled to the rotor (7), D is coupled to the anode spot welding output of the generator. 发电机由安装于发电机轴上的内绝缘环(12),安装于发电机后壳上的外绝缘环(13),安装于外绝缘环(13)内的旋转整流器(14)构成无刷励磁器(9),对转子(7)进行无刷激磁。 A generator mounted on the generator shaft in the insulating ring (12) attached to the generator outer insulating ring (13) on the housing, the insulating ring attached to the outer rotating rectifier (14) (13) constituting the brushless exciter (9), rotor (7) for brushless excitation.

本实用新型由于采用以上结构,故具有以下优点:由于发电机定子焊接绕组(2)采用无漏磁方式绕制,转子(7)采用隐极式转子,故整机效率可上升至60%以上,材料利用率上升至90%以上。 Since the above welding generator stator winding (2) wound seamless magnetic manner, the rotor (7) using the salient-pole rotor, so that the overall efficiency may rise to 60%: The present invention With the above configuration, it has the following advantages material utilization rose to 90%. 由于发电机采用电流取样模块(8),故使定子铁芯(1)内无需嵌制励磁绕组而使制造简便,同时使无漏磁发电机获得下降特性。 Since the generator current-sampling module (8), so that the stator core embedded system without a field winding (1) of the ease of manufacture, while the falling characteristics obtained seamless magnetic generator. 由于发电机采用了无刷励磁器(9),因而克服了碳刷、滑环式激磁方法不可靠,易磨损、需更换的缺点。 Since the generator using a brushless exciter (9), thus overcoming the carbon brush, slip ring excitation method is not reliable, easy to wear, to be replaced disadvantages.

本实用新型由下面的图型及具体实例说明:图1为本实用新型的结构示意图。 The present invention is illustrated by the pattern and the following specific examples: a novel structural diagram of the present invention. 图2为定子铁芯示意图。 Figure 2 is a schematic view of the stator core. 图3为转子铁芯示意图。 3 a schematic view of FIG rotor core. 图4为电流取样模块示意图。 FIG 4 is a schematic diagram of a current sampling module.

实例:用内环冲有60槽的环形硅钢片经叠铆后制成定子铁芯(1),在定子铁芯(1)槽内嵌有磁极互相铰链的10对无漏磁三相及单相交叉的交流焊接绕组(2),磁极互相铰链的10对无漏磁辅助绕组(3)构成发电机定子(4),并安于发电机壳体内。 Example: with an inner ring made of punched stator core (1) after an annular groove 60 of the stacked silicon steel sheets by riveting, the stator core (1) embedded in the groove 10 of the hinge pairs of poles mutually seamless magnetic and single-phase AC welding crossing winding (2), the auxiliary winding 10 pairs seamless magnetic (3) poles of each generator stator constituting a hinge (4), and the content with the generator housing. 用外圆冲有20槽的圆形硅钢片叠铆后制成转子铁芯(5),在转子铁芯(5)槽内嵌有磁极互相铰链的激磁绕组(6)构成10对磁极的发电机隐极式转子(7),并安装子发电机轴上。 With a cylindrical punch having a circular groove 20 made of silicon steel sheets of the rotor core (5) stacked after riveting, the rotor core (5) is embedded in the groove exciting winding poles each hinge (6) constituting the generator 10 pairs of poles salient pole machine rotor (7), and the generator shaft is mounted the child. 将电流取样模块(8)的A点联至发电机焊接输出之正极,B点联接至焊钳,C点联接至转子(7),D点联接至发电机焊接输出之负极,完成对焊接电流的部份取样,其中的焊接电压比较器(10)由三只型号为1N4007的二极管联成共阴极,即构成“或”逻辑关系,对焊接电压进行同步比较检测;其中的电子开关(11)由三只3CT5A可控硅联接成共阴极“三相半控”整流电路,其触发信号由焊接电压比较器(10)的“或”逻辑输出供给,从而将焊接电流的部份通过电子开关(11),无刷励磁器(9)馈给发电机转子(7)激磁及下降特性的调节。 A current sampling module (8) with the point A to the positive output of the welding generator, B coupled to the welding tongs point, C point is coupled to the rotor (7), D is coupled to the anode spot welding output of the generator to complete the welding current sampling part, wherein the welding voltage comparator (10) consists of three model 1N4007 diode together into a common cathode, i.e., of "or" logic, for comparing the detected welding voltage synchronization; wherein the electronic switch (11) coupled to the thyristor three 3CT5A common cathode "three-phase half-controlled" rectifier circuit, which triggers the welding voltage signal from the comparator (10) "or" logic output is supplied, so that the part of the welding current through the electronic switch ( 11), the brushless exciter (9) is fed to the generator rotor and the drooping characteristic excitation regulator (7). 将无刷励磁器(9)的内绝缘环(12)紧固安装于发电机轴上,装入旋转整流器(14)于外绝缘环(13)后整体紧固于发电机后壳上,完成对发电机的无刷激磁。 Brushless exciter inner insulating ring (9) (12) mounted on the generator shaft is fastened charged rotating rectifier (14) after the outer insulating ring (13) integrally fastened to the rear housing the generator, complete brushless excitation of the generator. 由于发电机转子(7)转速设计为3200转/分-3600转/分,所以整个发电机可通过其机壳同轴安装于原动机上,实现一体。 Since generator rotor (7) designed as a rotational speed of 3200 r / min -3600 rpm / min, the entire housing through which the generator can be mounted coaxially to the prime mover, implemented integrally. 由上述方法制作的发电机,当原动机功率为10KW时,其焊接电流输出为40-250A。 Generators manufactured by the above method, when the prime mover power 10KW, the welding current output 40-250A.

Claims (3)

1.一种用于焊接的大功率交流弧焊发电机,其特征在于由内环上冲有60槽的环形硅钢片叠铆后构成的定子铁芯(1),在定子铁芯(1)槽内嵌有无漏磁三相及单相交叉的交流焊接绕组(2),辅助电源绕组(3)构成的发电机定子(4),外圆冲有20槽的圆形硅钢片叠铆后构成的转子铁芯(5),在转子铁芯(5)槽内嵌有激磁绕组(6)构成的隐极式转子(7),安装于控制板上的能直接取出部份焊接电流馈给转子(7)激磁的电流取样模块(8),安装于发电机轴上并与轴及发电机壳体绝缘的无刷励磁器(9)构成。 An alternating current power generator for arc welding, characterized in that the inner ring by the punched stator core (1) of the annular groove 60 of the silicon steel sheets constituting the stack riveting, the stator core (1) after the grooves embedded three-phase and single-phase seamless magnetic AC welding crossing winding (2), an auxiliary power winding (3) a generator stator (4) composed of a circular cylindrical punched silicon steel sheets stacked riveting groove 20 constituting the rotor core (5), the rotor core (5) is embedded in the groove excitation winding (6) salient pole rotor (7) is configured, mounted on the control panel was taken out of the welding current can be directly fed brushless exciter rotor (7) excitation current sampling module (8) mounted on the generator shaft and the shaft housing and the generator insulation (9) configured.
2.根据权利要求1所述的大功率交流弧焊发电机,其特征在于电流取样模块(8)内由焊接电压比较器(10)及电子开关(11)构成,且电流取样模块(8)的A点联至发电机焊接输出之正极,B点联接至焊钳,C点联接至转子(7),D点联接至发电机焊接输出之负极。 The arc welding power AC generator according to claim 1, characterized in that the current sampling module (8) is constituted by welding voltage comparator (10) and the electronic switch (11), and the current sampling module (8) a point to the positive electrode with the welding output of the generator, B coupled to the welding tongs point, C point is coupled to the rotor (7), D is coupled to the anode spot welding output of the generator.
3.根据权利要求1所述的大功率交流弧焊发电机,其特征在于无刷励磁器(9)是由安装在发电机轴上的内绝缘环(12),安装于发电机后壳上的外绝缘环(13),安装于外绝缘环(13)内的旋转整流器(14)构成。 The arc welding power AC generator according to claim 1, wherein the brushless exciter (9) by the insulating ring (12) mounted on the shaft of the generator, the generator is mounted on the rear case an outer insulating ring (13), attached to the rotating rectifier outer insulating ring (14) inside (13) constituted.
CN 96202568 1996-02-17 1996-02-17 high-power ac. arc-welding generator CN2268337Y (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100449914C (en) 2006-10-12 2009-01-07 中国江南航天工业集团林泉电机厂 Method for making brushless DC velocity measuring dynamo
US8258905B2 (en) 2005-04-20 2012-09-04 Buerkert Werke Gmbh Solenoid unit and method for producing said solenoid unit and a magnet housing for such a solenoid unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8258905B2 (en) 2005-04-20 2012-09-04 Buerkert Werke Gmbh Solenoid unit and method for producing said solenoid unit and a magnet housing for such a solenoid unit
CN100449914C (en) 2006-10-12 2009-01-07 中国江南航天工业集团林泉电机厂 Method for making brushless DC velocity measuring dynamo

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