CN102790477B

CN102790477B - Assembling method of large box type high-voltage asynchronous motor

Info

Publication number: CN102790477B
Application number: CN201110131883.6A
Authority: CN
Inventors: 李何方
Original assignee: Xiangyang CSR Electric Machinery Co Ltd
Current assignee: Xiangyang CSR Electric Machinery Co Ltd
Priority date: 2011-05-20
Filing date: 2011-05-20
Publication date: 2015-07-01
Anticipated expiration: 2031-05-20
Also published as: CN102790477A

Abstract

The invention relates to an assembling method of a large box type high-voltage asynchronous motor, in particular to a motor assembling method for performing processing when partial processing procedures of a motor rotating shaft are transferred to motor assembling. The assembling method mainly solves problems of large reworking amount and cost increasing caused by faults in partial motor part matching due to dimensional tolerance accumulation of all parts in the production process of the large box type high-voltage asynchronous motor. The assembling procedures of a rotor and a stator of the motor are as follows: the rotor is hoisted into the stator, an outer cover of a bearing at the non-shaft-extension end of the motor rotor is assembled, fixing holes of water throwing rings at two ends of a shaft of the motor rotor are punched, oil seals at two ends of the shaft of the motor rotor are assembled, the water throwing rings at the two ends of the shaft of the motor rotor are assembled, a motor end cover is assembled, a motor outer fan is assembled, an air cooler is assembled, and a finished product is tested. The assembling method avoids motor reworking, reduces reworking expanse, and simultaneously can reduce cable waste and production cost due to the fact that a motor lead-out wire is welded during whole motor assembling.

Description

A kind of large box type high-voltage asynchronous motor assembly method

Technical field

The present invention relates to a kind of large box type high-voltage asynchronous motor assembly method, when relating to the part manufacturing procedure of machine shaft specifically and have winding stator core welding lead-out wire operation to move on to motor assembling, carry out a kind of motor assembly method of processing.

Background technology

At present, in large box type high-voltage asynchronous motor production process, known process is:

1. rotor equipment:

---------------------------------dress bearings at both ends device (internal bearing cover, bearing, disc etc.)---dress axle stretch end end cap---fills axle stretch end bearing end cover to dynamic balance test to cover fan to cover balancing frame to car iron core cylindrical to brill two ends throw rijng fixing hole to cylindrical grinding to turning to drill centers to planar end surface rotating shaft to be pressed into cast-aluminum rotor iron core in rotating shaft blanking.

2. stator equipment:

Stator coil makes, and---------------lead-out wire redundance---is cut off---press-fiting binding post---dress non-shaft stretching end end cap to dipping lacquer to rule by dress terminal box to have winding stator core to load support to connect lead-out wire.

3. the general assembly of rotor and stator:

---dress non-shaft stretching end bearing end cover---dress two ends oil sealing---dress two ends throw rijng---dress end shield---dress external fan---dress aerial cooler---manufacture test that rotor lifts in stator.

As can be seen from upper rotor part assembly manufacturing operation, first that rotor machining is good, namely before carrying out motor assembling, rotor is processed to finished product, because the overall dimension of large box type high-voltage asynchronous motor is general larger, reach more than 2 meters, the dimensional tolerance of each parts accumulates, motor part part axial is caused to be interfered, as throw rijng wipes V-shaped seal ring, motor is caused to have abnormal sound, or parts well can not contact cooperation, can not contact as throw rijng and V-shaped seal ring reveal seam, cause waterproof failure, phenomenon of the failure just can embody when often entering test after motor has assembled, therefore cause the motor production amount of doing over again large, particularly when motor non-shaft stretching end is equipped with external fan, first external fan must be torn open during process, the parts such as end shield, the amount of doing over again is large, dismounting difficulty, the production duration of motor will be affected and normally deliver goods, and the margin of tolerance of each parts is reduced, machining accuracy then can be caused to control difficulty, increase processing cost, extension of the work cycle.

In addition as can be seen from stator assembly process, known process first namely welds lead-out wire by after stator winding installation, wiring, dipping lacquer, because the overall dimension of large box type high-voltage asynchronous motor is general larger, reach more than 2 meters, and the direction of stator phase lead-out wire and terminal box is indefinite, therefore lead cable made allowance is larger, hang in support at motor assembling stator, unnecessary cable can be cut off during lead-out wire thereto, cable can be caused like this to waste, increase production cost.

Summary of the invention

The object of the invention is to overcome above-mentioned deficiency, and the one proposed is avoided doing over again, a kind of large box type high-voltage asynchronous motor assembly method reduced costs.

---assembling rotor non-shaft stretching end bearing end cover---brill rotor axis of electric two ends throw rijng fixing hole---assembling rotor axis of electric two ends oil sealing---assembling rotor axis of electric two ends throw rijng---assembling bearing housing---manufacture test that assembling external fan for electric machine---assembles aerial cooler---that technical solution of the present invention is: the assembly process of rotor and stator is: rotor lifts in stator.

The assembly process of the rotor described in the technology of the present invention solution is: rotating shaft blanking, and------------------------------running in bearings device (internal bearing cover, bearing, disc etc.)---assembling axle stretch end end cap---assembles shaft extension end bearing enclosing cover to dynamic balance test to cover fan to cover balancing frame to car iron core cylindrical to cylindrical grinding to turning to drill centers to planar end surface rotating shaft to be pressed into cast-aluminum rotor iron core.

The assembly process of the motor stator described in the technology of the present invention solution is: stator coil makes, and---------------wiring---press-fits binding post---and assembles non-shaft stretching end end cap assembling terminal box dipping lacquer rule to have winding stator core to load support.

Rotor assembling of the present invention is first processing rotor shaft portion operation, fixing hole axle assembling throw rijng wouldn't be processed, during pending motor assembling after assembling bearing end cover, on armature spindle, three holes of throw rijng are fixed in processing again, then throw rijng and other parts are refilled, thus thoroughly stopped throw rijng and wipe V-shaped seal ring or throw rijng and V-shaped seal ring reveals the fault of stitching, after adopting assembly method of the present invention, avoid during motor is produced and do over again, ensure that motor is normally delivered goods, decrease motor rework cost; After having winding stator core dipping lacquer during stator assembling simultaneously, first do not weld lead-out wire, when final assembly, after stator is hung in support, again coiled cables is passed support from terminal box, and then be welded on stator coil, length cutting cable as required, such cable would not be wasted, and can save a large amount of funds.

Accompanying drawing explanation

Fig. 1 is the structural representation of large-scale threephase asynchronous.

Embodiment

1. first rotor is processed, rotating shaft blanking---planar end surface---drill centers---turning---cylindrical grinding------car iron core cylindrical---cover balancing frame---cover fan---dynamic balance test---running in bearings device (internal bearing cover, bearing, disc etc.)---assembling axle stretch end end cap---the assembling shaft extension end bearing enclosing cover that rotating shaft is pressed into cast-aluminum rotor iron core by following operation.

2. processed by following operation by motor stator, stator coil makes again, and---------------wiring---press-fits binding post---and assembles non-shaft stretching end end cap assembling terminal box dipping lacquer rule to have winding stator core to load support.

3. last by rotor by the assembling of following operation,---assembling rotor non-shaft stretching end bearing end cover------assembling rotor axis of electric two ends oil sealing---assembling rotor axis of electric two ends throw rijng---assembling bearing housing---assembling external fan for electric machine---assembling aerial cooler---manufacture test of boring rotor axis of electric two ends throw rijng fixing hole that rotor lifts in stator.

Fig. 1 is the structural representation of the large-scale threephase asynchronous that rotor and stator assemble, and in figure, the hole, 3 of 1 to be rotating shaft, 2 be fixing throw rijng is throw rijng, 4 are V-shaped seal rings, 5 are stator cores, 6 are lead-out wires, 7 are supports, 8 is outlet boxes.

Claims

1.---assembling rotor non-shaft stretching end bearing end cover---brill rotor axis of electric two ends throw rijng fixing hole---assembling rotor axis of electric two ends oil sealing---assembling rotor axis of electric two ends throw rijng---assembling bearing housing---manufacture test that assembling external fan for electric machine---assembles aerial cooler---that a large box type high-voltage asynchronous motor assembly method, is characterized in that: the assembly process of rotor and stator is: rotor lifts in stator; The assembly process of described rotor is: rotating shaft blanking, and------------------------------running in bearings device---assembling axle stretch end end cap---assembles shaft extension end bearing enclosing cover to dynamic balance test to cover fan to cover balancing frame to car iron core cylindrical to cylindrical grinding to turning to drill centers to planar end surface rotating shaft to be pressed into cast-aluminum rotor iron core; The assembly process of described motor stator is: stator coil makes, and---------------wiring---press-fits binding post---and assembles non-shaft stretching end end cap assembling terminal box dipping lacquer rule to have winding stator core to load support.