變頻電機

產品名稱:YZTSE系列起重機

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產品說明書下載
 YZDZE系列起重機起吊電動機YG、YGEJ系列三相異步電動機 
  • 產品概述
  • 安裝尺寸

YZTSE系列起重機

YZTSE系列起重機用銅條實心轉子制動三相異步電動機 YZTSE SERIES THREE PHASE SOLID COPPER ROTOR ASYNCHRONOUS RUNNING MOTOR WITH BRAKE FOR CRANE APPLICATIONS

YZDTSE系列起重機用銅條實心轉子變極制動三相異步電動機 YZDTSE SERIES THREE PHASE SOLID COPPER ROTOR POLE CHANGING ASYNCHRONOUS RUNNING MOTOR WITH BRAKE FOR CRANE APPLICATIONS

  Ⅰ、概述

  YZTSE系列起重用銅條實心轉子制動三相異步電動機和YZDTSE系列起重用銅條實心轉子變極制動三相異步電動機均為本公司新設計的電動機。該二種電機是起重用銅條實心轉子三相異步電動機或起重用銅條實心轉子變極制動三相異步電動機和交流制動器二合一的產品。具有優異的電氣性能及機械性能,可作為各種單梁起重機、雙梁起重機、門式起重機的大車和小車運行機構以及電動葫蘆行走機構的動力。

  

  Ⅱ、起重用銅條實心轉子制動三相異步電動機和起重用銅條實心轉子變極制動三相異步電動機的電氣性能和特點。

  1.YZTSE系列電機和YZDTSE系列電機的電氣性能分別優于實心轉子制動三相異步電動機和實心轉子變極制動三相異步電動機,以7.5KW 4極電機為例,用實心轉子、銅條實心轉子分別裝在同一只定子鐵心內進行對比試驗,試驗結果表明,起重用銅條實心轉子制動三相異步電動機的堵轉電流小于實心轉子制動三相異步電動機的堵轉電流,而堵轉轉矩恰反之,詳見下表實測數據:

型號 對應功率(KW) 堵轉電流(A) 堵轉轉矩(N.m) 轉速(r/min)
實心轉子制動三相異步電動機 7.5 37 80 1200
銅條實心轉子制動三相異步電動機 7.5 35.5 94 1200

  2.由于YZTSE系列電機和YZDTSE系列電機具有較軟機械特性,即堵轉轉矩大、滑差大、加速慢,因此起重機運行機構配上YZTSE系列電機或YZDTSE系列電機后可獲得緩起動效果,從而起重機起動時可大大改善沖擊現象;  3.由于YZTSE系列電機和YZDTSE系列電機裝的是平面交流制動器,制動力矩可任意調節,這樣起重機停車時可獲得緩慢停止運行,不產生沖擊;  4.YZTSE系列電機和YZDTSE系列電機堵轉電流小,可滿足起重機的頻繁起動和點動的需要,由于堵轉電流小,電機若堵轉6-7分鐘,電機繞組也不會燒毀;  5.由于YZTSE系列電機和YZDTSE系列電機因具有較軟的機械特性,故可替代繞線轉子電機,從而可省去外接電阻和凸輪控制器等電控元件,節約成本,減少故障,提高使用可靠性;  6.為了提高電機使用中可靠性和壽命,YZTSE系列電機和YZDTSE系列電機的繞組采用F級絕緣等級;  7.YZTSE系列電機和YZDTSE系列電機的制動器為交流制動器,由三相380V 50HZ直接供電,且無二極管,因此大幅度提高電機可靠性和使用壽命;  8.電源電壓的波動對制動器吸合有很大影響,當電壓過低時,制動器會不吸合,制動器不吸合,電機就不能正常工作,嚴重時會燒壞電機,為了使制動器低電壓也能吸合,制動器設計上作了改進,YZTSE系列電機和YZDTSE系列電機的制動器電源電壓在300V低壓情況下,制動器也能吸上,保證電機能正常工作。

  該系列變頻電機中自主研發交流制動器經推向市場獲得廣泛好評。

  本系列變頻電機可制成直聯式結構,安裝型式和尺寸參見直聯式安裝表。

  本系列變頻電機可以按用戶提供的圖紙設計并制造。


  I.General

YZTSE Series 3-Phase Solid Copper Rotor Asynchronous Running Motor with Brake for Crane Applications, and YZDTSE Series 3-Phase Solid Copper Rotor Pole Changing Asynchronous Running Motor with Brake for Crane Applications are newly designed and manufactured by our company. They are a kind of integrated products of combination of the 3-phase asynchronous motor and AC brake. With excellent performance in both electricity and mechanism, they can be used as the driving element of any large and small running gears of various kinds of single and/or double arm and portal crane as well as moving power set of electric running. These series motors have granted an approved patent by the National Patent Bureau. The approval patent number is: 200420114437.X.

II.Electrical Performance and Features

YZTSE Series Three Phase Solid Copper Rotor Asynchronous Running Motor with Brake for Crane Applications and YZDTSE Series Three Phase Solid Copper Rotor Pole Changing Asynchronous Running Motor with Brake for Crane Applications are better compared with normal 3-phase solid rotor asynchronous motors with brake or 3-phase solid rotor pole changing asynchronous motors with brake in a number of ways.

1.The electrical performance and features of YZTSE series motor is better than normal 3-phase solid rotor in the purpose for the crane applications. In the laboratory test, using a 7.5kw and 4 poles motor, place the solid rotor and the solid copper rotor into the same stator respectively for comparison. The results shown that the locked rotor current of the motor with solid copper rotor is smaller than the solid rotor, while the starting torque is larger than the solid rotor. Please refer to table below for more details:

Type Correspondent Power(KW) Lock Rotor Current (A) Lock Torque (N.M) Seed (rpm)
3-phase solid rotor asynchronous motor with brake 7.5 37 80 1200
3-phase solid copper rotor asynchronous motor with brake 7.5 35.5 94 1200

1.These series solid copper rotor motors has high lock torque, large slip, and gradually starting performance, as it has soft mechanical feature. Therefore, these series motors when used for the crane applications can start smoothly, efficiently and effectively in order to reduce impact and save energy. 2.Because of these series motors equipped with AC flat brake. The brake torque can be adjusted freely. Consequently, the crane applications can move or stop smoothly without any impacts. 3.These series motors are capable for frequently starting and crawling (point movement) due to their small lock rotor current. 4.Taking advantage of the soft mechanical feature of these series motor, these motors are able to replace the wound-rotor motors. As result of that, these motors are more reliable, less accident and reduce cost, as they do not use additional accessories as other motors do, eg. resistors and cam controller etc. 5.In order to increase the reliability and improve service life, YZTSE series motor and YZDTSE series motor adopt the Class F insulation. 6.These motors with an AC brake. The AC brake is powered directly from a three phase power supply without rectified diodes. The AC brakes are not only quick response braking (100 times quicker than a DC single phase brake) but also have improved reliability and long service life. The advantages of AC brakes also include precise positioning, such as no axial movements, and the capability of a wide adjustable range of braking torque, such as from zero (0) to any desired values. The AC brake is an approved patent from the National Patent Bureau. The approval patent number is: 97206492.3. 7.The variation of supply voltage has great influence in the operation of the AC brake. The brake will refuse to work; consequently, the motor will be malfunction, if it is excessive low voltage. However, the brake for YZTSE series motor and YZDTSE series motor is specially signed for the situation of low voltage, such as supply voltage at or above 300V, to ensure the brake and the motor work normally.

Compared with YZTSE Series 3-Phase Solid Copper Rotor Asynchronous Running Motor with Brake for Crane Applications, YZDTSE Series 3-Phase Solid Copper Rotor Pole Changing Asynchronous Running Motor with Brake for Crane Applications is empowered with the function of changing number of poles in the participating at the work when it is requested.

The motor has been awarded an approved patent from the National Patent Bureau with number of ZL 200820057339.5.

Above series motors are available in the direct connection between the motor and the gearbox. Please refer to tables below for details.

The AC brake is an approved patent from the National Patent Bureau. The approval patent number is: 97206492.3

These series motors can be customized designed and produced to meet your request.

Ⅲ、型號說明

YZTSE系列起重機型號說明 YZTSE系列起重機型號說明

Tag:YZTSE系列起重機 起重機


 YZDZE系列起重機起吊電動機YG、YGEJ系列三相異步電動機 
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