TRD-GK360-RZC2L
TRD-GK360-RZC2L
主要产品:奥托尼克斯Autonics /倍加福P+F编码器,多摩川TAMAGAWA,光洋koyo,莱茵LINE,内密控NEMICON,欧姆龙OMRON,森泰克SUMTAK。日本东方马达,韩国DKM减速电机,泰映TROY减速电机,韩国SPG小功率
马达,CPG晟邦减速电机 ...
主要产品:奥托尼克斯Autonics /倍加福P+F编码器,多摩川TAMAGAWA,光洋koyo,莱茵LINE,内密控NEMICON,欧姆龙OMRON,森泰克SUMTAK。日本东方马达,韩国DKM减速电机,泰映TROY减速电机,韩国SPG小功率
马达,CPG晟邦减速电机 ...
减速机技术资料:
减速机技术资料:
直流电机主要分为定子和转子两大部分。定转子之间存在的间隙称为气隙。
1.定子
定子是电机的静止部分,主要用来产生磁场。它主要包括:
(1)主磁极 主磁极包括铁心和励磁绕组两部分。当励磁绕组中通人直流电流后,铁心中即产生励磁磁通,并在气隙中建立励磁磁场。励磁绕组通常用圆形或矩形的绝缘导线制成一个集中的线圈,套在磁极铁心外面。主磁极铁心一般用1~1.5mm厚的低碳钢板冲片叠压铆接而成,主磁极铁心柱体部分称为极身,靠近气隙一端较宽的部分称为极靴,极靴与极身交接处形成一个突出的肩部,用以支撑住励磁绕组。极靴沿气隙表面成弧形,使磁极下气隙磁通密度分布更合理。整个主磁极用螺杆固定在机座上。
主磁极总是N、S两极成对出现。各主磁极的励磁绕组通常是相互串联连接,连接时要能保证相邻磁极的极性按N、S交替排列。
(2)换向极 换向极也由铁心和绕组构成。中小容量直流电机的换向极铁心是用整块钢制成的,大容量直流电机和换向要求高的电机,换向极铁心用薄钢片叠成,换向极绕组要与电枢绕组串联,因通过的电流大,导线截面较大,匝数较少。换向极装在主磁极之间,换向极的数目一般等于主磁极数,在功率很小的电机中,换向极的数目有时只有主磁极极数的一半,或不装换向极。换向极的作用是改善换向,防止电刷和换向器之间出现过强的火花。
(3)电刷装置 电刷装置由电刷,刷握、压紧弹簧和刷杆座等组成。电刷是用碳-石墨等做成的导电块,电刷装在刷握的盒内,用压紧弹簧把它压紧在换向器的表面上。压紧弹簧的压力可以调整,保证电刷与换向器表面有良好的滑动接触,刷握固定在刷杆上,刷杆装在刷杆座上,彼此之间绝缘。刷杆座装在端盖或轴承盖上,根据电流的大小,每一刷杆上可以有几个电刷组成的电刷组,电刷组的数目一般等于主磁极数。电刷的作用是与换向器配合引入、引出电流。
(4)机座和端盖 机座一般用铸钢或厚钢板焊接而成。它用来固定主磁极、换向极及端盖,借助底脚将电机固定于基础上、机座还是磁路的一部分,用以通过磁通的部分称为磁轭,端盖主要起支撑作用,端盖固定于机座上,其上放置轴承,支撑直流电机的转轴,使直流电机能够旋转。
2.转子
转子是电机的转动部分,转子的主要作用是感应电动势,产生电磁转矩,使机械能变为电能(发电机)或电能变为机械能(电动机)的枢纽。它主要包括:
(1)电枢 电枢又包括铁心和绕组两部分。
①电枢铁心 电枢铁心一般用0.5mm厚的涂有绝缘漆的硅钢片冲片叠成,这样铁心在主磁场中转动时可以减少磁滞和涡流损耗。铁心表面有均匀分布的齿和槽,槽中嵌放电枢绕组。电枢铁心构成磁的通路。电枢铁心固定在转子支架或转轴上。
②电枢绕组 电枢绕组是用绝缘铜线绕制成的线圈按一定规律嵌放到电枢铁心槽中,并与换向器作相应的连接。线圈与铁心之间以及线圈的上下层之间均要妥善绝缘,用槽楔压紧,再用玻璃丝带或钢丝扎紧。电枢绕组是电机的核心部件,电机工作时在其中产生感应电动势和电磁转矩,实现能量的转换。
(2)换向器 换向器的作用是与电刷配合,将直流电动机输入的直流电流转换成电
枢绕组内的交变电流,或是将直流发电机电枢绕组中的交变电动势转换成输出的直流电压。
换向器是一个由许多燕尾状的梯形铜片间隔云母片绝缘排列而成的圆柱体,每片换向片的一端有高出的部分,上面铣有线槽,供电枢绕组引出端焊接用。所有换向片均放置在与它配合的具有燕尾状槽的金属套简内,然后用V形钢环和螺纹压圈将换向片和套筒紧固成一整体,换向片组与套筒、V形钢环之间均要用云母片绝缘。
(3)转轴 在转轴上安装电枢和换向器。
3.气隙
静止的磁极和旋转的电枢之间的间隙称为气隙。在小容量电机中,气隙为0.5~3mm。气隙数值虽小,但磁阻很大,为电机磁路的主要组成部分。气隙大小对电机运行性能有很大影响。
永磁直流电机广泛应用于各种便携式的电子设备或器具中,如录音机、VCD机、电唱机、电动按摩器及各种玩具,也广泛应用于汽车、摩托车、电动自行车、蓄电池车、船舶、航空、机械等行业,在一些高精尖产品中也有广泛应用,如录像机、复印机、照相机、手机、精密机床、银行点钞机、捆钞机等。在舞台灯光方面,永磁直流电机,特别是小型永磁直流齿轮电机的用量非常大。计算机行业中的打印机、扫描仪、硬盘驱动器、光盘驱动器、刻录机、冷却风扇等都要用到大量的永磁直流电机。
汽车行业中的各种风扇、刮水器、喷水泵、熄火器、反视镜、打气泵更是用到各种永磁直流电机。宾馆中的自动门、自动门锁、自动窗帘、自动给水系统、柔巾机等都用到永磁直流电机、在武器装备中,永磁直流电机广泛应用于导弹、火炮、人造卫星、宇宙飞船、舰艇、飞机、坦克、火箭、雷达、战车等场合。
在工农业方面,永磁直流电机也广泛用于电气和自动化控制及仪器仪表中。在医用方面,永磁直流电机用处更不小,如医用的各种仪器、手术工具,如开脑手术中的电动锯骨刀,特别是野外手术中的各种仪器基本上都是用的永磁直流电机。在残疾人用品方面,如机械手、残疾车等都用到永磁直流电机。在生活方面,用处更多,现在连牙刷也用永磁直流电机做成电动牙刷了。永磁直流电机的应用真是举不胜举,可以说是无处不在。
随着时代的发展,永磁直流电机的应用会更多,原先用交流电机的许多场合均被永磁直流电机所替代。特别是出现永磁无刷电机后,永磁直流电机的生产数量在不断地上升。我国每年生产的各种永磁直流电机大达数十亿台以上,生产永磁直流电机的厂家不计其数。
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SQUARE D ELECTRICAL CONTROLS CONTROL BOX 8538 SCA24
Returns: Accepted within 60 days
SQUARE D CAT#LHL3600M 400A/600VAC/3POLE
Square D 800 Amp 600V Breaker 3 Pole MAL36800 A-25
Square D NHF361200G 1200a GF shunt trip 240v 100k 480v 50k 5k-10k trip range 3 p
SQUARE D 200A LIGHTING CONTACTOR SERIES B 8903 SV01
SQUARE D POWERPACT CIRCUIT BREAKER CAT#HJA36070 70A/600V/3POLE
Square D: PowerLogic Circuit Monitor, Class: 3020 / CM2350, w/ VPM-277-C1
Square D EDB36030 Circuit Breaker 30 Amp 600V ! NEW !
1 USED SQUARE D LAL2640036M80 400 AMP CIRCUIT BREAKER
Square D Merlin Gerin NFHF36020 NSF150H 20A 3 Poles Circuit Breaker (6766)
Square D 9070-GO-4D1 Transformer 240/480-120V ! NEW !
Square D Circuit Breaker LAL36400 400 Amps #15998
Square D KAL kal361256139 125 amp kal36125 Breaker
NEW SQUARE D SWITCHGEAR LOAD SIDE FUSE ACCESSORY 80102*
New Square D 8903LXG30V02 Mechanically Held Lighting Contactor in Enclosure.
Square D LA LA36000 series 3 400 amp 3 pole Breaker molded case switch
1 USED SQUARE D DARK GREEN FACE FAL340801212 CIRCUIT BREAKER
SQUARE D KA KA26200bc 200 AMP 2 POLE CIRCUIT BREAKER
SQUARE D POWERLOGIC ENERCEPT METER 8012 100 AMP
SQUARE D MAL364508041 CIRCUT BREAKER (WITH LUGS) XLNT!
SQUARE D 200A MAIN BREAKER PANEL CAT#QOC342MS 120/208V 3 PHASE 4 WIRE
SQUARE D 8020 SCP-401 PLC PROCESSOR MODEL 400 SY/MAX
SQUARE D 100A 3P I-LINE BREAKER QJA32100 NEW PULL LL-29
Square D 20T145HDIT Isolation Transformer
SQUARE D CIRCUIT BREAKER CAT#LA360400
SQUARE D 8903LA1200V02 30A SERIES C TYPE 12 ENCLOSURE LIGHTING CONTACTOR, NIB
1 NEW SQUARE D 9007-TUD5 LIMIT SWITCH 4 NIB 1 NNB
Square D LAP36400MB Molded Case Circuit Breaker 600V 400A 3P (Used)
Square D # PA31200RC Circuit Breaker Rating Columns 1200 Amps Set of 3 NIB
Square D E-894688 Size 2 Motor Control Center Bucket 480V 50A 3PH
NEW Square D QOU30001 Molded Case Circuit Breaker 125A 3-Pole 240VAC 50/60Hz
Square D - QDA221501 - Circuit Breaker - 150A - 2 Pole - 240V - 50/60Hz - New
Square D Motor Controller Unit E-659652 ED404 100 Amp Trip Box Instant
SQUARE D SY/MX SPE4-1S (NR&D) SERIAL PORT EXPAN, GOOD TAKEOUT
GOOD USED SQUARE D PANELBOARD ENCLOSURE / BOX MH23WP
Square D PFCD4007 Power Factor Correction Capacitor
SQUARE D SYMAX 8030RIM101 INPUT MODULE 16PT NEW IN BOX
Square D 8998-S-665,780 Motor Control Center Unit 480Y/277V 3PH 5HP
Square D 8998-S-665,777 Motor Control Center Unit 480Y/277V 3PH 5HP
Square D LA36400 Circuit Breaker 600V 400A 3P
Square D LH36400 Circuit Breaker 600V 400A 3P
SQUARE D SY/MAX MODEL 700 PROCESSOR 8020 SCP-721 S30608-557
Square D HU361DS Heavy Duty Safety Switch 600V 30A NIB
Square D H361NDS Heavy Duty Safety Switch 600V 30A
NEW PM8 Square D Powerlogic Display Adapter
Square D HU461 Heavy Duty Safety Switch 600V 30A (NIB)
Square D 8538SDG12V02S Motor Control 230V 60A
Hoffman UU605025W electrical enclosure w/ square D panel type 3 3R 4 4X 12 13