CN102005851B

CN102005851B - Wound motor with safe and stable operation

Info

Publication number: CN102005851B
Application number: CN2010105751615A
Authority: CN
Inventors: 赵红娟; 王云飞; 李宇
Original assignee: Shenyang Yuanda Machinery & Electronic Equipment Co Ltd
Current assignee: SHENYANG YUANDA TECHNOLOGY ELECTRIC WORKS CO., LTD.
Priority date: 2010-12-07
Filing date: 2010-12-07
Publication date: 2012-05-30
Anticipated expiration: 2030-12-07
Also published as: CN102005851A

Abstract

The invention discloses a wound motor with safe and stable operation, which solves the problems of large vibration, inferior binding strength of leads at a wound rotor terminal, complex manufacturing process of rotor and slip ring lead wire, difficult wire releasing and the like. The wound motor comprises a pedestal, a rotating shaft assembled on the pedestal via an end cover and a bearing seat, a rotor fixed above the rotating shaft and a rotor lead-out device; the wound motor is technically characterized in that: a pedestal body, an end plate, a rib plate and a peripherally coated covering plate form a vibration reduction pedestal in a frame-type overall structure through rectangular reinforcing ribs and angle steel reinforcing ribs with axial full length, the side of the end cover body is provided with a reinforcing type end cover of the reinforcing rib, the latitude-free periphery of the coil end part of the rotor is provided with a protective ring fixing device, and a petal lead and the rotor lead-out device of a conductive rod are adopted. The wound motor is reasonable in structural design and simple in manufacturing process, obviously reduces mechanical vibration, enhances vibration reduction effect, guarantees safe and reliable operation of motor and beautifies entire appearance.

Description

The coiling electric motor of safe and stable operation

Technical field

The present invention relates to a kind of novel winding motor, particularly a kind of coiling electric motor that is applicable to the safe and stable operation of high rotating speed (1500-2250r/min).

Background technology

In recent years, along with country strengthens the input to infrastructure construction, the relevant industries particularly development speed of cement industry are more and more faster.Wound motor is because starting performance is good, so become the ideal power of cement machinery.Country is to the exploitation of new forms of energy, makes the fast development of wind power generation industry.Therefore, the demand of winding-type double-fed generator also significantly improves.Along with power of motor constantly increases, problems such as the vibration of coiling electric motor and rotor leading wire become the key issue of motor safety operation, and its reliability is the main performance index that can motor normally move.Existing coiling electric motor exists some drawbacks; Do not have the insecure of latitude band fastening structure like motor-spin-coil, electric machine stand, end cap rigidity are poor, influence effectiveness in vibration suppression etc.; Cause the coefficient of safety of said structure low; Often have or not latitude band disrepair phenomenon to take place, electric machine stand and end cap be poor rigidity when high-speed cruising, is prone to produce vibration; Rotor leading-out wire is at the inner skewness of motor circular hole, and the structure of lead-out wire causes rotor assembling difficulty; These drawbacks make the motor of high-speed cruising can't operate as normal sometimes.Also caused the loss that is difficult to retrieve to the user.Chinese patent number is 200820237701.7 " a kind of wound motor "; Built-in slip ring and rotor leading wire structure are disclosed; Though it has solved the high problem of built-in slip ring failure rate; But still there is motor defective such as easy deformation when high rotating speed lower rotor part lead-in wire can't guarantee safe and reliable operation, rotor tip in high rotating speed operation in it, has to be overcome.

Summary of the invention

The coiling electric motor that the purpose of this invention is to provide a kind of safe and stable operation, it has solved existing high rotating speed coiling electric motor vibration greatly, around the sub-end measure lead-in wire colligation intensity difference that rotates; Rotor and slip ring lead wire manufacturing process are complicated, problems such as outlet difficulty, and it is compared with existing like product; Reasonable in design, manufacturing process is simple, has reduced mechanical oscillation significantly; Improve effectiveness in vibration suppression, not only guaranteed the motor safety reliability service, and increased the overall appearance aesthetic feeling.

The technical scheme that the present invention adopted is: the coiling electric motor of this safe and stable operation comprises support; Be fixed on the stator on the support; Be assembled in rotating shaft on the support, be fixed on rotor and rotor ejector above the rotating shaft through end cap and bearing pedestal; Its technical essential is: said support adopts through axial elongated rectangle reinforcement and angle stiffener; With the end plate at machine base body and two ends and middle gusset and be coated on the integrally-built vibration damping support of frame-type that the cover plate of periphery is formed; The side that said end cap is employed in the end cap body is provided with the enhancement mode end cap of the reinforcement of the change natural mode shape that distributes symmetrically and evenly, in the no latitude band periphery of the end winding of said rotor the protective ring fixture is set, and said rotor ejector adopts lobe formula lead-in wire and has the conducting rod of insulating sheath.

The axial elongated said rectangle reinforcement of said vibration damping support has 6 at least, and said angle stiffener has 2 at least.

Be arranged on the protective ring fixture of the end winding of said rotor; Comprise and be exposed at outside end winding unshakable in one's determination; Be strapped in the outer field no latitude band of said end winding and tie up the no latitude rope that said no latitude takes up the beginning position, the protective ring that is provided with in said no latitude band periphery is fixedly connected through the support ring on the said iron core.

Said rotor ejector; Comprise the lead wire that is connected with slip ring; Said lead wire comprises lobe formula lead-in wire that the distinguish copper rod of employing insulating barrier separation is processed and the conducting rod that has insulating sheath; The distinguish copper rod at the rotating shaft center that is arranged in one end of said conducting rod and the said lobe formula lead-in wire is fixedly connected, and another of bar has the insulating case end and be connected with slip ring.

Advantage and good effect that the present invention has are: since the present invention produce will influence the motor high-speed cruising time vibrate and influence safe operation destabilizing factor; Adopted the integrally-built vibration damping support of frame-type, enhancement mode end cap, no latitude band periphery that the protective ring fixture is set respectively and adopt lobe formula lead-in wire and have the rotor ejector that the conducting rod of insulating sheath constitutes in the rotor coil end; So can fundamentally improve rotor lead-in wire assembly problem; The vibration in motor when operation is obviously alleviated, for the normal operation of motor provides good assurance.It has solved existing high rotating speed coiling electric motor vibration greatly, and around the sub-end measure lead-in wire colligation intensity difference that rotates, rotor and slip ring lead wire manufacturing process are complicated, problems such as outlet difficulty.Practice examining proves, because of adopting the reasonable in design of said structure, the simple coiling electric motor of manufacturing process; The intact regulation of making National standard of the vibration values of motor itself; So it is compared with existing like product, has reduced mechanical oscillation significantly, has improved effectiveness in vibration suppression; Not only guarantee the motor safety reliability service, and increase the overall appearance aesthetic feeling.

Description of drawings

Below in conjunction with accompanying drawing the present invention is further described.

Fig. 1 is a kind of concrete structure sketch map of the present invention.

Fig. 2 is a kind of structural representation of the enhancement mode end cap among Fig. 1.

Fig. 3 is the end view of Fig. 2.

Fig. 4 is a kind of structural representation of the rotor coil end fixture among Fig. 1.

Fig. 5 is a kind of structural representation of the vibration damping support among Fig. 1.

Fig. 6 is the cutaway view of Fig. 5 along the A-A line.

Fig. 7 is a kind of structural representation of the rotor ejector among Fig. 1.

Fig. 8 is the cutaway view of Fig. 7 along the B-B line.

Sequence number explanation among the figure: 1 rotating shaft, 2 bearing pedestals, 3 enhancement mode end caps, 4 protective ring fixtures, 5 rotors, 6 vibration damping supports, 7 rotor ejectors, 8 slip rings, 9 end cap bodies, 10 reinforcements, 11 iron cores, 12 end windings, 13 no latitude bands, 14 no latitude ropes, 15 protective rings, 16 support rings, 17 machine base body, 18 end plates, 19 cover plates, 20 gussets, 21 rectangle reinforcements, 22 angle stiffeners, 23 conducting rods, 24 insulating sheaths, 25 distinguish copper rods, 26 insulating barriers.

Embodiment

Specify concrete structure of the present invention according to Fig. 1～8.The coiling electric motor of this safe and stable operation comprises vibration damping support 6, is fixed on the stator on the vibration damping support 6, is assembled in rotating shaft 1 on the vibration damping support 6, is fixed on the parts such as rotor 5 and rotor ejector 7 above the rotating shaft 1 through enhancement mode end cap 3 and bearing pedestal 2.The electric current of rotor 5 inductions leads to slip ring 8 through rotor ejector 7 safety, and slip ring 8 is installed in the outside rotating shaft 1 of motor.Wherein vibration damping support 6 adopts through axially elongated rectangle reinforcement 21 and angle stiffener 22, with the end plate 18 at machine base body 17 and two ends and middle gusset 20 and be coated on the frame-type overall structure that the cover plate 18 of periphery is formed.The side that enhancement mode end cap 3 is employed in end cap body 9 is provided with the Enhanced Configuration of the reinforcement 10 of the change natural mode shape of distribution symmetrically and evenly.No latitude band 13 peripheries at the end winding 12 of rotor 5 are provided with protective ring fixture 4.Rotor ejector 7 adopts lobe formula lead-in wire and has the conducting rod 23 of insulating sheath 23.In order to increase the cross sectional moment of inertia of this vibration damping support 6; Play damping effect better; To be distributed in the weakness that vibration damping support 6 carries to axial elongated rectangle reinforcement 21; The axial elongated rectangle reinforcement 21 of vibration damping support 6 has 6 at least, and two elongated angle stiffeners 22 of going up the place, angle that are arranged on vibration damping support 6 have 2 at least.

Be arranged on the protective ring fixture 4 of the end winding 12 of rotor 5; Comprise the end winding 12 that is exposed at 11 outsides unshakable in one's determination; The no latitude rope 14 that is strapped in end winding 12 outer field no latitude bands 13 and ties up no latitude band 13 original positions is fixedly connected through the support ring on the iron core 11 16 at the protective ring 15 that no latitude band 13 peripheries are provided with.Wherein protective ring 15 can adopt the stainless steel metal section bar, because the protective action of protective ring 15 and support ring 16 makes the bulk strength of rotor coil end 12 increase.

Rotor ejector 7 comprises the lead wire that is connected with slip ring 8, and this lead wire comprises lobe formula lead-in wire that the distinguish copper rod 25 of employing insulating barrier 26 separations is processed and the conducting rod 23 that has insulating sheath 24.The distinguish copper rod 25 that is arranged on rotating shaft 1 center in one end of conducting rod 23 and the lobe formula lead-in wire is fixedly connected, and another of conducting rod 23 has the insulating case end and be connected with slip ring 8, and electric current is drawn rotor current through conducting rod 23.

Claims

1. the coiling electric motor of a safe and stable operation; Comprise support; Be fixed on the stator on the support; Be assembled in rotating shaft on the support, be fixed on rotor and rotor ejector above the rotating shaft through end cap and bearing pedestal; It is characterized in that: said support adopts through axial elongated rectangle reinforcement and angle stiffener, and the end plate at machine base body and two ends and middle gusset and the cover plate that is coated on periphery are formed the integrally-built vibration damping support of frame-type, and the side that said end cap is employed in the end cap body is provided with the enhancement mode end cap of the reinforcement of the change natural mode shape of distribution symmetrically and evenly; No latitude band periphery at the end winding of said rotor is provided with the protective ring fixture, the lobe formula lead-in wire that the distinguish copper rod that said rotor ejector adopts insulating barrier to separate is processed and have the conducting rod of insulating sheath.

2. the coiling electric motor of safe and stable operation according to claim 1, it is characterized in that: the axial elongated said rectangle reinforcement of said vibration damping support has 6 at least, and said angle stiffener has 2 at least.

3. the coiling electric motor of safe and stable operation according to claim 1; It is characterized in that: the protective ring fixture that is arranged on the end winding of said rotor; Comprise and be exposed at outside end winding unshakable in one's determination; Be strapped in the outer field no latitude band of said end winding and tie up the no latitude rope that said no latitude takes up the beginning position, and at the protective ring of said no latitude band periphery setting and the support ring on the said iron core, said protective ring is fixedly connected through said support ring.

4. the coiling electric motor of safe and stable operation according to claim 1; It is characterized in that: said rotor ejector; Comprise the lead wire that is connected with slip ring, said lead wire comprises lobe formula lead-in wire that the distinguish copper rod that adopts insulating barrier to separate is processed and the conducting rod that has insulating sheath, and an end of said conducting rod is fixedly connected with the distinguish copper rod at the rotating shaft center that is arranged on during said lobe formula goes between; The other end of bar has insulating case, and this other end is connected with slip ring.