CN202059295U

CN202059295U - Copper bar rotor structure of three-phase asynchronous motor

Info

Publication number: CN202059295U
Application number: CN201120149441XU
Authority: CN
Inventors: 舒冬冬; 孙成磊; 陈涛
Original assignee: Wuxi Zhongda Motors Co Ltd
Current assignee: Wuxi Zhongda Motors Co Ltd
Priority date: 2011-08-11
Filing date: 2011-08-11
Publication date: 2011-11-30
Anticipated expiration: 2021-08-11

Abstract

The utility model relates to a copper bar rotor structure of a three-phase asynchronous motor. The copper bar rotor structure comprises copper end rings, copper bar conducting bars, rotor ventilation trough plates, rotor sheets, rotor core keys, rotor pressure rings, and a core locking key, wherein the rotor ventilation trough plates and the rotor sheets are overlapped and sleeved on the shaft of a rotor; the rotor ventilation trough plates and the rotor sheets are fixed with the shaft of the rotor through the rotor core keys; two ends of the rotor core keys are fixed on the shaft of the rotor through the rotor pressure rings sleeved on the shaft of the rotor; the copper bar conducting bars are inserted into the core slots formed by the rotor ventilation trough plates and the rotor sheets, and the copper end rings are welded at two ends of each copper bar conducting bar. The utility model has the advantages of reasonable structure, high reliability, compactness, low mould cost, simplicity in processing, convenience in operation, short processing period, good manufacturability, and convenience in installation and maintenance.

Description

A kind of threephase asynchronous copper bar rotor structure

Technical field

The utility model relates to the copper bar rotor structure of a kind of motor rotor structure, particularly a kind of medium-and-large-sized threephase asynchronous.

Background technology

At present, electromechanics trade is fast-developing, and the structure of motor is also in continuous variation, add enterprise product and will constantly promote reliability, the efficient of customer requirement also will constantly improve, customer requirement constantly shortens motor delivery date, processing and fabricating is also simple and clear, and existing cast-aluminum rotor will be opened Cast Aluminum Dies up and down, and the fabrication cycle of Cast Aluminum Dies is long, and the manufacturing cost of mould is also higher, and the resistivity of aluminium (0.0434) wants big many than the resistivity (0.0217) of copper, the loss of nature motor is also bigger, and the operating efficiency of motor is difficult to improve naturally.As shown in Figure 1, the cast-aluminum rotor structure is that aluminium end ring 11, cast aluminium sliver 12, rotor punching 13, rotor ventilation frid 14 are placed on the moulds of industrial equipment that design in sequence, aluminium ingot is fused into aluminium liquid, aluminium end ring 11, cast aluminium sliver 12, rotor punching 13, rotor ventilation frid 14 are poured into an integral body, be inserted on the axle 8 of rotor together, form the rotor of a cast aluminium structure.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of threephase asynchronous copper bar rotor structure is provided, and is the copper bar rotor of the high efficient, high pressure threephase asynchronous of a kind of efficient height, good reliability.

The technical scheme that provides according to the utility model, the copper bar rotor structure of described threephase asynchronous comprises: the copper end ring, the copper bar sliver, the rotor ventilation frid, rotor punching, the rotor core key, rotor pressing ring, locking key unshakable in one's determination, multi-disc rotor ventilation frid and rotor punching laminate on the axle that is enclosed within rotor, fix by the rotor core key between the axle of described rotor ventilation frid and rotor punching and rotor, rotor core key two ends are fixed on the axle of described rotor by the rotor pressing ring on the axle that is enclosed within rotor, described copper bar sliver is inserted in the rotor ventilation frid and rotor punching laminates in the flute profile unshakable in one's determination of formation, each copper bar sliver two ends soldering copper end ring.

The outside of described rotor pressing ring is locked on the axle of rotor by locking key unshakable in one's determination.

Each parts pack in sequence design fits good the axle on, rotor ventilation frid and rotor punching laminate in sequence.

The utility model has the advantages that: rational in infrastructure, reliability is high, compact, die cost is low, technology is simple, easy to operate, process-cycle is short, good manufacturability is convenient for installation and maintenance.

Description of drawings

Fig. 1 is a cast-aluminum rotor structural representation in the prior art.

Fig. 2 is the utility model copper bar rotor structure schematic diagram.

Embodiment

The utility model is described in further detail below in conjunction with concrete drawings and Examples.

As shown in Figure 2, copper bar rotor structure described in the utility model comprises: copper end ring 1, copper bar sliver 2, rotor ventilation frid 3, rotor punching 4, rotor core key 5, rotor pressing ring 6, locking key 7 unshakable in one's determination, multi-disc rotor ventilation frid 3 and rotor punching 4 laminate on the axle 8 that is enclosed within rotor, fixing between the axle 8 of described rotor ventilation frid 3 and rotor punching 4 and rotor by rotor core key 5, rotor core key 5 two ends are fixed on the axle 8 of described rotor by the rotor pressing ring 6 on the axle 8 that is enclosed within rotor, described copper bar sliver 2 is inserted in rotor ventilation frid 3 and rotor punching 4 laminates in the flute profile unshakable in one's determination of formation, each copper bar sliver 2 two ends soldering copper end ring 1.The outside of described rotor pressing ring 6 is locked on the axle 8 of rotor by locking key 7 unshakable in one's determination.

During assembling, rotor core key 5 is contained on the axle 8 of rotor, be inserted in rotor pressing ring 6 again, laminate in sequence again and change rotor ventilation frid 3 and rotor punching 4 over to, compress with certain pressure then, reinstall rotor pressing ring 6, lock with locking key 7 unshakable in one's determination again, go into copper bar sliver 2 in the flute profile interpolation unshakable in one's determination that laminates then, soldering copper end ring 1 on copper bar sliver 2 is so just formed efficient copper bar rotor at last.Adopt special welding procedure between rotor end ring and the copper bar sliver.

Claims

1. threephase asynchronous copper bar rotor structure, comprise copper end ring (1), copper bar sliver (2), rotor ventilation frid (3) and rotor punching (4), multi-disc rotor ventilation frid (3) and rotor punching (4) laminate on the axle (8) that is enclosed within rotor, it is characterized in that: fixing between the axle (8) of described rotor ventilation frid (3) and rotor punching (4) and rotor by rotor core key (5), rotor core key (5) two ends are fixed on the axle (8) of described rotor by the rotor pressing ring (6) on the axle (8) that is enclosed within rotor, described copper bar sliver (2) is inserted in rotor ventilation frid (3) and rotor punching (4) laminates in the flute profile unshakable in one's determination of formation, each copper bar sliver (2) two ends soldering copper end ring (1).

2. a kind of threephase asynchronous copper bar rotor structure as claimed in claim is characterized in that the outside of described rotor pressing ring (6) is locked on the axle (8) of rotor by locking key unshakable in one's determination (7).