CN202713023U

CN202713023U - Overall sealing structure of flame-proof type water cooling motor

Info

Publication number: CN202713023U
Application number: CN 201220369290
Authority: CN
Inventors: 李卫东; 肖红; 范作智; 刘成强
Original assignee: Fushun Coal Mine Motor Manufacturing Co Ltd
Current assignee: Fushun Coal Mine Motor Manufacturing Co Ltd
Priority date: 2012-07-27
Filing date: 2012-07-27
Publication date: 2013-01-30
Anticipated expiration: 2022-07-27

Abstract

The utility model belongs to the technical field of motors, and specifically relates to an overall sealing structure of a flame-proof type water cooling motor. O-shaped sealing rings and lip-shaped sealing rings are arranged in axle holes of outer small covers of a bearing, side faces of the outer small covers are provided with seal gum plugs, and a front end cover and inner small covers are provided with semi-coarse felted wool. The front end cover, a back end cover, a cover plate and an outer cover of the motor are provided with five O-shaped sealing rings, two axial plane oil seals, two semi-coarse felted wool seals, and the seal gum plugs. The lip-shaped sealing rings are skeleton type oil seals with clamping springs, the semi-coarse felted wool seals, the seal gum plugs, and the sealing rings. The overall sealing structure of the flame-proof type water cooling motor has the advantages that the protection grade of a GB3836 flame-proof requirement is effectively improved, the IP55, IP56 or IP66 protection grade is realized, the motor sealing performance is good, and the structure is simple and reasonable, so that the reliability of the motor is improved, the service life of the motor is increased, and the overall sealing structure of the flame-proof type water cooling motor can be widely used for various motors.

Description

A kind of flame-proof type water-cooled machine integral seal structure

Technical field

The utility model belongs to the motor technology field, is specifically in a kind of cavity of flame-proof type water-cooled motor, cavity is dustproof, waterproof, dirt-proof integral seal structure.

Background technology

Threephase asynchronous is of paramount importance electric equipment in the electric drive system, it be applicable to electric equipment product that the environment of explosive atmosphere, explosive gas mixture uses, simple in structure, reliable, be widely used in industrial and mineral, oil, be to realize electrified indispensable power-equipment.

Threephase asynchronous mainly comprises stator, rotor and terminal box, the rotating shaft of supporting motor rotor, before the motor, rear end cap, the gap that outer tegillum leaves between them, steam, dirt, grease is easy to invade bearing along each position in gap, and enter in the motor cavity, cause motor winding insulation resistance to reduce, the copper loss of winding increases, cause overheated or short circuit in winding aggravation winding insulation layer aging, even burn, especially water-cooled machine, the intrusion of cooling water is difficult to avoid especially, the gap of machine shaft and outer tegillum centre bore also makes bearing oil inside easily simultaneously, leak in the outside, not only aggravate the wearing and tearing of bearing, increase power consumption, and pollute environment for use.

The utility model content

For the technical problem of above-mentioned existence, the utility model provides that a kind of cavity medial and lateral, cavity of flame-proof type water-cooled motor are dustproof, waterproof, dirt-proof integral seal structure.Concrete scheme is:

A kind of flame-proof type water-cooled machine integral seal structure, comprise front end housing 20, rotating shaft 30, rotor 40, stator 50, rear end cap 70, junction box cover plate 80, described front end housing 20, the outer tegillum 10 of rear end cap 70 arranged outside, described front end housing 20, rear end cap 70 inboards arrange interior tegillum 60, between described front end housing 20, rear end cap 70 and casing O RunddichtringO 2 is set, outer tegillum 10 and

front end housing

20,70 of rear end caps arrange O RunddichtringO 2, and O RunddichtringO 2 is set between junction box cover plate 80 and junction box body; 30 of described interior tegillum 60 and rotating shafts arrange half common and braid wool felt 3; Water nozzle place on described front end housing 20, the rear end cap 70 arranges fluid sealant stifled 4; 30 of outer tegillum 10 and rotating shafts arrange axial plane oil sealing 5; Described end face or outside framework oil seal 5 are lip-shaped sealed ring.

The utility model beneficial effect is: be covered with five road O sealing rings at the forward and backward end cap of motor, cover plate outside reaching, described end face or outside framework oil seal and axial plane interference fit, oily lip and end cap friction sealed twice axial plane oil sealing and twice half common and braid wool felt seal, stifled, the sealing ring of fluid sealant.Be implemented in motor interior and form the closed loop sealed circuit, can effectively block water and dirt enter the motor cavity each position, motor lubricating grease not in the easy to leak cavity and cavity outer, reduce manpower and materials, improve the quality of product; Reduced the motor spoilage.Thereby Effective Raise the degree of protection that requires of GB3836 flame proof to IP55, IP56 or IP66, the design requirement that has adapted to different motor, this motor seal performance is excellent, simple and reasonable, thus improved motor unfailing performance, increased useful life of motor.

The utility model O sealing ring is five road O sealing rings, described axial plane oil sealing and axial plane interference fit, oil lip and the friction sealed twice axial plane of end cap oil sealing have follow preferably compensatory, twice half common and braid wool felt seal, have better permeability and good flexibility, fluid sealant is stifled, sealing ring has preferably flexibility and sealing effectiveness.And this oil sealing and various potted component can be subjected to less radial load fully, obtain good sealing effectiveness.

Description of drawings

Fig. 1 is water-cooled motor structural representation of the present utility model;

Fig. 2 is the outer tegillum structural representation of motor of the present utility model;

Fig. 3 is the front end housing structural representation;

Fig. 4 is the rear end cover structure schematic diagram.

Fig. 5 is interior tegillum structural representation;

Fig. 6 is the junction box cover plate structural representation;

Wherein: 1 is sealing ring; 2 is the O RunddichtringO; 3 is half common and braid wool felt; 4 for fluid sealant stifled; 5 is the axial plane oil sealing; L is spreading, and namely flame proof is apart from size.

Embodiment

Below in conjunction with drawings and Examples the utility model is described further:

Such as Fig. 1-shown in Figure 6, the utility model comprises front end housing 20, rotating shaft 30, rotor 40, stator 50, rear end cap 70, junction box cover plate 80, described front end housing 20, the outer tegillum 10 of rear end cap 70 arranged outside, described front end housing 20, rear end cap 70 inboards arrange interior tegillum 60, between described front end housing 20, rear end cap 70 and casing O RunddichtringO 2 is set, outer tegillum 10 and

front end housing

20,70 of rear end caps arrange O RunddichtringO 2, and O RunddichtringO 2 is set between junction box cover plate 80 and junction box body; 30 of described interior tegillum 60 and rotating shafts arrange half common and braid wool felt 3; Water nozzle place on described front end housing 20, the rear end cap 70 arranges fluid sealant stifled 4; 30 of outer tegillum 10 and rotating shafts arrange axial plane oil sealing 5; Described axial plane oil sealing 5 is lip-shaped sealed ring.

As shown in Figure 1, the various seals of water-cooled motor form closed loop sealed circuit structure in motor interior.When motor is exposed to the adverse circumstances of explosive mixture, explosive gas mixture, can effectively block the foreign material such as water, gas and dirt enter the motor cavity each position, make the operation that motor can be good.The degree of protection that has solved the requirement of GB3836 flame proof is realized IP55, IP56 or IP66 degree of protection, this motor seal performance is excellent, simple and reasonable, thereby improved motor unfailing performance, increased useful life of motor, improve motor mass, be widely used in the practical problems such as various electric machine structures.

Claims

1. flame-proof type water-cooled machine integral seal structure, comprise front end housing (20), rotating shaft (30), rotor (40), stator (50), rear end cap (70), junction box cover plate (80), it is characterized in that: described front end housing (20), the outer tegillum (10) of rear end cap (70) arranged outside, described front end housing (20), rear end cap (70) inboard arranges interior tegillum (60), described front end housing (20), O RunddichtringO (2) is set between rear end cap (70) and casing, outer tegillum (10) and front end housing (20), O RunddichtringO (2) is set between rear end cap (70), O RunddichtringO (2) is set between junction box cover plate (80) and junction box body; Half common and braid wool felt (3) is set between described interior tegillum (60) and rotating shaft (30); Water nozzle place on described front end housing (20), the rear end cap (70) arranges fluid sealant stifled (4); End face or outside framework oil seal (5) are set between outer tegillum (10) and rotating shaft (30).

2. structure according to claim 1, it is characterized in that: described end face or outside framework oil seal (5) are lip-shaped sealed ring.