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長時間使用電動叉車造成的損耗及常見故障

來源:http://nukkadh.com/ 日期:2020-02-20 發布人:admin

想必大家都知道,無論任何機械都不可長久使用,因為長久使用會造成巨大的損耗,嚴重可能會出現故障,而一旦出現故障,那么就會直接導致電動叉車無法行駛,下面小編帶大家了解對電動叉車造成的損耗以及出現故障解決方法。

I think you all know that no matter what machinery can not be used for a long time, because long-term use will cause huge loss, and serious failure may occur, and once there is a failure, it will directly cause the electric forklift to be unable to drive. Here's a small braid for you to understand the loss caused by the electric forklift and the troubleshooting.
一、長時間使用電動叉車造成的損耗
1、 Loss caused by long-term use of electric forklift
1、定子和轉子鐵心中的基本鐵耗。它主要是主磁場在鐵心中發生變化時產生的。
1. Basic iron loss in stator and rotor cores. It is mainly produced when the main magnetic field changes in the core.
2、空載時鐵心中的附加或雜散的損耗。它主要指由定子和轉子開槽而引起的磁導諧波磁場在對方貼心表面產生的表面耗損和因開槽而使對方齒中刺痛因電動機旋轉而變化的脈振損耗。
2. Additional or stray losses in the core at no load. It mainly refers to the surface loss caused by the slot of stator and rotor, and the pulse loss caused by the slot of stator and rotor.
濟南二手叉車
3、電器損耗。它指由工作電流在繞組銅或鋁中產生的損耗,也包括電刷在轉向器或集電環上的接觸損耗。
3. Electrical loss. It refers to the loss caused by the working current in the winding copper or aluminum, and also includes the contact loss of the brush on the steering gear or collector ring.
4、負載時的附加或雜散損耗。這是由于定子或轉子的工作電流所產生的漏磁場,包括諧波磁場、在定,轉子繞組里和貼心及結構件里引起的各種損耗。
4. Additional or stray losses at load. This is the leakage magnetic field caused by the working current of the stator or rotor, including harmonic magnetic field, various losses caused in the stator, rotor winding, intimate and structural parts.
5、機械損耗。它包括電動叉車電機通風損耗由轉子旋轉引起的轉子表面與冷卻氣體之間的摩擦損耗以及安裝在電動機轉軸上的旋轉變壓器或由電動機本身轉軸驅動的風扇所需的功率損耗,軸承摩擦損耗,電刷與換向器或集電環間的摩擦損耗。
5. Mechanical loss. It includes the friction loss between the rotor surface and the cooling gas caused by the rotation of the rotor, the power loss required by the resolver installed on the motor shaft or the fan driven by the motor shaft, the bearing friction loss, and the friction loss between the brush and the commutator or collector ring.
二、電動叉車常見故障解決方法
2、 Solutions to common troubles of electric forklift
1、電動叉車電機不啟動:可能是熔斷器燒斷、控制線路不通、電動機繞組有嚴重的短路或斷路、換向片之間短路、電刷接觸不良、負載過重或軸承等機械損壞所致。
1. Motor of electric forklift does not start: it may be caused by fuse burn out, control circuit impassability, serious short circuit or open circuit of motor winding, short circuit between reversing pieces, poor contact of electric brush, overload or mechanical damage of bearing, etc.
方法:將電機拆卸下來,對線路進行詳細排查,線路損壞嚴重直接更換新的電機;輕微損壞就進行修復。
Methods: dismantle the motor, check the circuit in detail, replace the motor with a new one if the circuit is seriously damaged, and repair it if it is slightly damaged.
2、電動叉車電機轉速不正常:可能是繞組短路或斷路、電刷位置不正并過載、軸承損壞、電源電壓太低等原因所致。
2. Motor speed of electric forklift is abnormal: it may be caused by short circuit or open circuit of winding, improper position and overload of electric brush, bearing damage, too low power supply voltage, etc.
方法:檢查電源電壓是否符合使用標準,修正電刷位置,檢查軸承損壞情況,嚴重更換,不嚴重進行對應修復。
Methods: check whether the power supply voltage meets the use standard, correct the position of the brush, check the bearing damage, replace it seriously, and repair it if not.
3、電刷發生火花:可能是因為叉車電刷接觸不良、換向器表面高低不平、電刷位置不正、表面不潔、換向片短路或電動機繞組短路等原因造成。
3. Sparking of electric brush: it may be caused by poor contact of electric brush of forklift, uneven surface of commutator, incorrect position of electric brush, unclean surface, short circuit of commutator or motor winding, etc.
方法:檢查電刷接觸點是否未安裝嚴密,清理表面。
Method: check whether the brush contact point is not installed tightly and clean the surface.
4、電動叉車電機產生高溫:可能由于過載、叉車的各軸承及油封太過于緊、損壞或潤滑不良,軸芯不正、電樞及磁極相磨擦、繞組短路、電刷壓力過大、位置不正、整流不良等原因造成。
4. High temperature of electric forklift motor: it may be caused by overload, too tight bearing and oil seal of forklift, damage or poor lubrication, incorrect shaft core, friction between armature and magnetic pole, short circuit of winding, excessive brush pressure, incorrect position, poor rectification, etc.
方法:啟動前,詳細排查各零件部位是否能正常運轉使用,做好一切準備工作。
Methods: before start-up, check whether all parts can operate normally, and make all preparations.

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